We have considered the Aristotelian philosophy in relation
to the great concrete interests of life, morals, politics, literature,
and science. We have now to ask what it has to tell us
about the deepest and gravest problems of any, the first principles
of Being and Knowing, God and the soul, spirit and
matter, metaphysics, psychology, and logic. We saw that
very high claims were advanced on behalf of Aristotle in
respect to his treatment of these topics; and had we begun
with them, we should only have been following the usual
example of his expositors. We have, however, preferred
keeping them to the last, that our readers might acquire some
familiarity with the Aristotelian method, by seeing it applied
to subjects where the results were immediately intelligible,
and could be tested by an appeal to the experience of twenty-two
centuries. We know that there are some who will demur
to this proceeding, who will say that Aristotle the metaphysician
stands on quite different ground from Aristotle the
man of science, because in the one capacity he had, and in
the other capacity he had not, sufficient facts to warrant
an authoritative conclusion. They will say, with Prof. St.
George Mivart, that in accumulating natural knowledge men’s
minds have become deadened to spiritual truth; or with Mr.
Edwin Wallace, that the questions opened by Aristotle have
not yet been closed, and that we may with advantage begin
our study of them under his guidance. We, on the other
hand, will endeavour to show that there is a unity of composition
running through the Stagirite’s entire labours, that they
everywhere manifest the same excellences and defects, which
are those of an anatomising, critical, descriptive, classificatory
genius; that his most important conclusions, however great
their historical interest, are without any positive or even
educational value for us, being almost entirely based on false
physical assumptions; that his ontology and psychology are
not what his admirers suppose them to be; and that his
logic, though meriting our gratitude, is far too confused and
incomplete to throw any light on the questions raised by
modern thinkers.
Here, as elsewhere, we shall employ the genetic method
of investigation. Aristotle’s writings do not, indeed, present
that gradual development of ideas which makes the Platonic
Dialogues so interesting. Still they exhibit traces of such a
development, and the most important among them seems to
have been compiled from notes taken by the philosopher
before his conclusions were definitely reasoned out, or worked
up into a consistent whole. It is this fragmentary collection
which, from having been placed by some unknown editor
after the Physics, has received a name still associated with
every kind of speculation that cannot be tested by a direct or
indirect appeal to the evidence of external sense.
Whether there exist any realities beyond what are revealed
to us by this evidence, and what sensible evidence itself may
be worth, were problems already actively canvassed in
Aristotle’s time. His Metaphysics at once takes us into the
thick of the debate. The first question of that age was, What
are the causes and principles of things? On one side stood
the materialists—the old Ionian physicists and their living
representatives. They said that all things came from water
or air or fire, or from a mixture of the four elements, or from
the interaction of opposites, such as wet and dry, hot and cold.
Aristotle, following in the track of his master, Plato, blames
them for ignoring the incorporeal substances, by which he
does not mean what would now be understood—feelings or
states of consciousness, or even the spiritual substratum of
consciousness—but rather the general qualities or assemblages
of qualities which remain constant amid the fluctuations of
sensible phenomena; considered, let us observe, not as subjective
thoughts, but as objective realities. Another deficiency
in the older physical theories is that they either ignore the
efficient cause of motion altogether (like Thales), or assign
causes not adequate to the purpose (like Empedocles); or
when they hit on the true cause do not make the right use of
it (like Anaxagoras). Lastly, they have omitted to study
the final cause of a thing—the good for which it exists.
The teleology of Aristotle requires a word of explanation,
which may appropriately find its place in the present connexion.
In speaking of a purpose in Nature, he does not mean
that natural productions subserve an end lying outside themselves;
as if, to use Goethe’s illustration, the bark of cork-trees
was intended to be made into stoppers for ginger-beer
bottles; but that in every perfect thing the parts are interdependent,
and exist for the sake of the whole to which they
belong. Nor does he, like so many theologians, both ancient
and modern, argue from the evidence of design in Nature to
the operation of a designing intelligence outside her. Not
believing in any creation at all apart from works of art, he
could not believe in a creative intelligence other than that of
man. He does, indeed, constantly speak of Nature as if she
were a personal providence, continually exerting herself for
the good of her creatures. But, on looking a little closer,
we find that the agency in question is completely unconscious,
and may be identified with the constitution of each particular
thing, or rather of the type to which it belongs. We have
said that Aristotle’s intellect was essentially descriptive, and
we have here another illustration of its characteristic quality.
The teleology which he parades with so much pomp adds
nothing to our knowledge of causes, implies nothing that a
positivist need not readily accept. It is a mere study of
functions, an analysis of statical relations. Of course, if there
were really any philosophers who said that the connexion
between teeth and mastication was entirely accidental, the
Aristotelian doctrine was a useful protest against such an
absurdity; but when we have established a fixed connexion
between organ and function, we are bound to explain the
association in some more satisfactory manner than by reaffirming
it in general terms, which is all that Aristotle ever
does. Again, whatever may be the relative justification of
teleology as a study of functions in the living body, we have
no grounds for interpreting the phenomena of inorganic
nature on an analogous principle. Some Greek philosophers
were acute enough to perceive the distinction. While admitting
that plants and animals showed traces of design, they
held that the heavenly bodies arose spontaneously from the
movements of a vortex or some such cause;222 just as certain
religious savants of our own day reject the Darwinian theory
while accepting the nebular hypothesis.223 But to Aristotle the
unbroken regularity of the celestial movements, which to us
is the best proof of their purely mechanical nature, was, on
the contrary, a proof that they were produced and directed
by an absolutely reasonable purpose; much more so indeed
than terrestrial organisms, marked as these are by occasional
deviations and imperfections; and he concludes that each of
those movements must be directed towards the attainment of
some correspondingly consummate end;224 while, again, in
dealing with those precursors of Mr. Darwin, if such they can
be called, who argued that the utility of an organ does not
disprove its spontaneous origin, since only the creatures which,
by a happy accident, came to possess it would survive—he
answers that the constant reproduction of such organs is
enough to vindicate them from being the work of chance;225
thus displaying his inability to distinguish between the two
ideas of uniform causation and design.
As a result of the foregoing criticism, Aristotle distinguishes
four different causes or principles by which all things
are determined to be what they are—Matter, Form, Agent,
and Purpose.226 If, for example, we take a saw, the matter is
steel; the form, a toothed blade; the agent or cause of its
assuming that shape, a smith; the purpose, to divide wood
or stone. When we have enumerated these four principles,
we have told everything that can be known about a saw. But
Aristotle could not keep the last three separate; he gradually
extended the definition of form until it absorbed, or became
identified with, agent and purpose.227 It was what we should
call the idea of function that facilitated the transition. If the
very essence or nature of a saw implies use, activity, movement,
how can we define it without telling its purpose? The
toothed blade is only intelligible as a cutting, dividing instrument.
Again, how came the saw into being? What shaped
the steel into that particular form? We have said that it
was the smith. But surely that is too vague. The smith is
a man, and may be able to exercise other trades as well.
Suppose him to be a musician, did he make the saw in that
capacity? No; and here comes in a distinction which plays
an immense part in Aristotle’s metaphysics, whence it has
passed into our every-day speech. He does not make the
saw quâ musician but quâ smith. He can, however, in the
exercise of his trade as smith make many other tools—knives,
axes, and so forth. Nevertheless, had he only learned to
make saws it would be enough. Therefore, he does not make
the saw quâ axe-maker, he makes it quâ saw-maker. Nor,
again, does he make it with his whole mind and body, but
only with just those thoughts and movements required to give
the steel that particular shape. Now, what are these thoughts
but the idea of a saw present in his mind and passing through
his eyes and hands, till it fixes itself on the steel? The
immaterial form of a saw creates the real saw which we use.
Let us apply the preceding analogies to a natural object; for
example, a man. What is the Form, the definition of a man?
Not a being possessing a certain outward shape, for then a
marble statue would be a man, which it is not; nor yet
a certain assemblage of organs, for then a corpse would be a
man, which, according to Aristotle, criticising Democritus, it
is not; but a living, feeling, and reasoning being, the end of
whose existence is to fulfil all the functions involved in this
definition. So, also, the creative cause of a man is another
man, who directly impresses the human form on the material
supplied by the female organism. In the same way, every
definite individual aggregate becomes what it is through the
agency of another individual representing the same type in
its perfect manifestation.228
The substantial forms of Aristotle, combining as they do
the notion of a definition with that of a moving cause and a
fulfilled purpose, are evidently derived from the Platonic
Ideas; a reflection which at once leads us to consider the
relation in which he stands to the spiritualism of Plato and
to the mathematical idealism of the Neo-Pythagoreans. He
agrees with them in thinking that general conceptions are the
sole object of knowledge—the sole enduring reality in a world
of change. He differs from them in maintaining that such
conceptions have no existence apart from the particulars in
which they reside. It has been questioned whether Aristotle
ever really understood his master’s teaching on the subject.
Among recent critics, M. Barthélemy Saint-Hilaire asserts,
with considerable vehemence, that he did not. It is certain
that in some respects Aristotle is not just to the Platonic
theory, that he exaggerates its absurdities, ignores its developments,
and occasionally brings charges against it which might
be retorted with at least equal effect against his own philosophy.
But on the most important point of all, whether
Plato did or did not ascribe a separate existence to his Ideas,
we could hardly believe a disciple of twenty years’ standing229
to be mistaken, even if the master had not left on record a
decisive testimony to the affirmative side in his Parmenides,
and one scarcely less decisive in his Timaeus.230 And so far as
the controversy reduces itself to this particular issue, Aristotle
is entirely right. His most powerful arguments are not,
indeed, original, having been anticipated by Plato himself;
but as they were left unanswered he had a perfect right to
repeat them, and his dialectical skill was great enough to
make him independent of their support. The extreme
minuteness of his criticism is wearisome to us, who can hardly
conceive how another opinion could ever have been held.
Yet such was the fascination exercised by Plato’s idealism,
that not only was it upheld with considerable acrimony by
his immediate followers,231 but under one form or another it
has been revived over and over again, in the long period
which has elapsed since its first promulgation, and on every
one of these occasions the arguments of Aristotle have been
raised up again to meet it, each time with triumphant success.
Ockham’s razor, Entia non sunt sine necessitate multiplicanda,
is borrowed from the Metaphysics; Locke’s principal objection
to innate ideas closely resembles the sarcastic observation in
the last chapter of the Posterior Analytics, that, according to
Plato’s theory, we must have some very wonderful knowledge
of which we are not conscious.232 And the weapons with which
Trendelenburg and others have waged war on Hegel are
avowedly drawn from the Aristotelian arsenal.233
In his criticism on the ideal theory, Aristotle argues that
it is unproved; that the consequences to which it leads
would be rejected by the idealists themselves; that it involves
a needless addition to the sum of existence; that it neither
explains the origin of things nor helps us to understand them,
while taking away from them their substantial reality; that
the Ideas are merely sensible objects hypostasised, like the
anthropomorphic divinities of primitive men; that, to speak
of them as patterns, in whose likeness the world was created,
is a mere idle metaphor; that, even assuming the existence
of such patterns, each individual must be made in the likeness,
not of one, but of many ideas—a human being, for
instance, must be modelled after the ideal biped and the
ideal animal, as well as after the ideal man; while many of
the ideas themselves, although all are supposed to exist
absolutely, must be dependent on other and simpler types;
finally, that, assuming an idea for every abstract relation,
there must be ideas to represent the relation between every
sensible object and its prototype, others for the new relations
thus introduced, and so on to infinity.
Aristotle’s objections to the Neo-Pythagorean theory of
ideal numbers need not delay us here. They are partly a
repetition of those brought against the Platonic doctrine in its
original form, partly derived from the impossibility of identifying
qualitative with quantitative differences.234
Such arguments manifestly tell not only against Platonism,
but against every kind of transcendental realism, from the
natural theology of Paley to the dogmatic agnosticism of
Mr. Herbert Spencer. A modern Aristotle might say that
the hypothesis of a creative first cause, personal or otherwise,
logically involves the assumption of as many original specific
energies as there are qualities to be accounted for, and thus
gives us the unnecessary trouble of counting everything twice
over; that every difficulty and contradiction from which the
transcendental assumption is intended to free us, must, on
analysis, reappear in the assumption itself—for example, the
God who is to deliver us from evil must be himself conceived
as the creator of evil; that the infinite and absolute can
neither cause, nor be apprehended by, the finite and relative;
that to separate from Nature all the forces required for its
perpetuation, and relegate them to a sphere apart, is a false
antithesis and a sterile abstraction; lastly, that causation,
whether efficient or final, once begun, cannot stop; that if
this world is not self-existing, nothing is; that the mutual
adaptation of thoughts in a designing intelligence requires to
be accounted for just like any other adaptation; that if the
relative involves the absolute, so also does the relation between
the two involve another absolute, and so on to infinity.
These are difficulties which will continue to perplex us
until every shred of the old metaphysics has been thrown off.
To that task Aristotle was not equal. He was profoundly
influenced by the very theory against which he contended;
and, at the risk of being paradoxical, we may even say that it
assumed a greater importance in his system than had ever
been attributed to it by Plato himself. To prove this, we
must resume the thread of our exposition, and follow the
Stagirite still further in his analysis of the fundamental
reality with which the highest philosophy is concerned.
Ever since the age of Parmenides and Heracleitus, Greek
thought had been haunted by a pervading dualism which
each system had in turn attempted to reconcile, with no
better result than its reproduction under altered names.
And speculation had latterly become still further perplexed
by the question whether the antithetical couples supposed to
divide all Nature between them could or could not be reduced
to so many aspects of a single opposition. In the last
chapter but one we showed that there were four such competing
pairs—Being and Not-Being, the One and the Many,
the Same and the Other, Rest and Motion. Plato employed
his very subtlest dialectic in tracing out their connexions,
readjusting their relationships, and diminishing the total
number of terms which they involved. In what was probably
his last great speculative effort, the Timaeus, he seems to
have selected Sameness and Difference as the couple best
adapted to bear the heaviest strain of thought. There is
some reason for believing that in his spoken lectures he
followed the Pythagorean system more closely, giving the
preference to the One and the Many; or he may have
employed the two expressions indifferently. The former
would sooner commend itself to a dialectician, the latter to a
mathematician. Aristotle was both, but he was before all
things a naturalist. As such, the antithesis of Being and
Not-Being, to which Plato attached little or no value, suited
him best. Accordingly, he proceeds to work it out with a
clearness before unknown in Greek philosophy. The first
and surest of all principles, he declares, is, that a thing cannot
both be and not be, in the same sense of the words, and
furthermore that it must either be or not be. Subsequent
logicians prefixed to these axioms another, declaring that
whatever is is. The three together are known as the laws of
Identity, Contradiction, and Excluded Middle. By all, except
Hegelians, they are recognised as the highest laws of thought;
and even Hegel was indebted to them, through Fichte, for the
ground-plan of his entire system.235
The whole meaning and value of such excessively abstract
propositions must lie in their application to the problems
which they are employed to solve. Aristotle made at once
too much and too little of his. Too much—for he employed
them to refute doctrines not really involving any logical inconsistency—the
theory of Heracleitus, that everything is in
motion; the theory of Anaxagoras, that everything was
originally confused together; the theory of Protagoras, that
man is the measure of all things. Too little—for he admitted
a sphere of possibilities where logical definition did not
apply, and where subjects simultaneously possessed the
capacity of taking on one or other of two contradictory
attributes.
Nor is this all. After sharply distinguishing what is
from what is not, and refusing to admit any intermediary
between them, Aristotle proceeds to discover such an intermediary
in the shape of what he calls Accidental Predication.236
An accident is an attribute not necessarily or usually inhering
in its subject—in other words, a co-existence not dependent
on causation. Aristotle could never distinguish between the
two notions of cause and kind, nor yet between interferences
with the action of some particular cause and exceptions to
the law of causation in general; and so he could not frame
an intelligible theory of chance. Some propositions, he tells
us, are necessarily true, others are only generally true; and
it is the exceptions to the latter which constitute accident; as,
for instance, when a cold day happens to come in the middle
of summer. So also a man is necessarily an animal, but
only exceptionally white. Such distinctions are not uninteresting,
for they prove with what difficulties the idea of
invariable sequence had to contend before even the highest
intellects could grasp it. There was a constant liability to
confound the order of succession with the order of co-existence,
the order of our sensations with the order of objective
existence, and the subjection of human actions to any fixed
order, with the impossibility of deliberation and choice. The
earlier Greek thinkers had proclaimed that all things existed
by necessity; but with their purely geometrical or historical
point of view, they entirely ignored the more complex questions
raised by theories about classification, logical attribution,
and moral responsibility. And the modifications introduced
by Epicurus, into the old physics, show us how unanswerable
Aristotle’s reasonings seemed to some of his ablest
successors.
Absolute being is next distinguished from truth, which,
we are told, has no objective existence237—a remarkable
declaration, which throws much light on other parts of the
Aristotelian system, and to which we shall subsequently
return.238
After explaining at considerable length what Being is not,
Aristotle now proceeds to ascertain what it is. He tells us
that just as all number quâ number must be either odd or
even, so all Being quâ Being must have certain universal
attributes. These he sets himself to discover. When
Descartes long afterwards entered on a somewhat similar
inquiry, he fell back on the facts of his own individual consciousness.
Aristotle, on the contrary, appeals to the common
consciousness of mankind as embodied in ordinary language.
In how many senses do we say that a thing is? The first
answer is contained in his famous Ten Categories.239 These
are not what some have supposed them to be, summa genera
of existence, but summa genera of predication. In other
words, they are not a classification of things, but of the information
which it is possible to receive about a single
thing, more especially about the richest and most concrete
thing known to us—a human being. If we want to find out
all about a thing we ask, What is it? Of what sort? How
large? To what does it belong? Where and when can we
find it? What does it do? What happens to it? And if
the object of our investigations be a living thing, we may
add, What are its habits and dispositions? The question
has been raised, how Aristotle came to think of these ten
particular categories, and a wonderful amount of rubbish has
been written on the subject, while apparently no scholar
could see what was staring him in the face all the time,
that Aristotle got them by collecting all the simple forms
of interrogation supplied by the Greek language,240 and writing
out their most general expressions.
Having obtained his categories, Aristotle proceeds to
mark off the first from the other nine. The subject or
substance named in answer to the question, What is it? can
exist without having any quality, size, and so forth predicated
of it; but they cannot exist without it. Logically, they
cannot be defined without telling what they are; really they
cannot be conceived without something not themselves in
which they inhere. They are like the tail of a kite, giving
greater conspicuousness and buoyancy to the body, but
entirely dependent on it for support. What our philosopher
fails to perceive is, that the dependence is reciprocal, that
substance can no more be conceived without attributes than
attributes without substance; or rather that substance, like
all other categories, can be resolved into Relation.241
Meanwhile, he had a logical machine ready to hand,
which could be used with terrible effect against the Platonic
Ideas. Any of these—and there were a great number—that
could be brought under one of the last nine categories were
at once deprived of all claim to independent existence.
Take Equality, for instance. It cannot be discovered outside
quantity, and quantity is always predicated of a substance.
And the same is true of number, to the utter destruction of
the Neo-Pythagorean theory which gave it a separate existence.
Moreover, the categories served not only to generalise
and combine, but also to specificate and divide. The idea of
motion occurs in three of them; in quantity, where it means
increase or diminution; in quality, where it means alteration,
as from hot to cold, or vice versâ; and in place, implying
transport from one point to another. The Idea of Good,
which stands at the very summit of Plato’s system, may be
traced through all ten categories.242 Thus, the supposed unity
and simplicity of such conceptions was shown to be an
illusion. Platonism was, in truth, so inconsistent with the
notions embodied in common language, that it could not but
be condemned by a logic based on those notions.
Aristotle next takes the Idea of Substance and subjects it
to a fresh analysis.243 Of all things none seem to possess so
evident an existence as the bodies about us—plants and
animals, the four elements, and the stars. But each of these
has already been shown to consist of Form and Matter. A
statue, for instance, is a lump of bronze shaped into the
figure of a man. Of these two constituents, Matter seems at
first sight to possess the greater reality. The same line of
thought which led Aristotle to place substance before the
other categories now threatens to drive him back into
materialism. This he dreaded, not on sentimental or
religious grounds, but because he conceived it to be the
negation of knowledge. He first shows that Matter cannot
be the real substance to which individuals owe their determinate
existence, since it is merely the unknown residuum
left behind when every predicate, common to them with
others, has been stripped off. Substance, then, must be
either Form alone or Form combined with Matter. Form,
in its completest sense, is equivalent to the essential definition
of a thing—the collection of attributes together constituting
its essence or conception. To know the definition is to know
the thing defined. The way to define is to begin with the
most general notion, and proceed by adding one specific
difference after another, until we reach the most particular
and concrete expression. The union of this last with a
certain portion of Matter gives us the individual Socrates or
Callias. There are no real entities (as the Platonists pretend)
corresponding to the successive stages of generalisation,
biped, animal, and so forth, any more than there are self-existing
quantities, qualities, and relations. Thus the problem
has been driven into narrower and narrower limits, until at
last we are left with the infimæ species and the individuals
contained under them. It remains to discover in what
relation these stand to one another. The answer is unsatisfactory.
We are told that there is no definition of individuals,
and also that the definition is identical with the individual.244
Such, indeed, is the conclusion necessarily resulting from
Aristotle’s repeated declarations that all knowledge is of
definitions, that all knowledge is of something really existing,
and that nothing really exists but individual things. Nevertheless,
against these we have to set equally strong declarations
to the effect that knowledge is of something general,
not of the perishing individuals which may pass out of
existence at any moment. The truth is, that we are here, as
Zeller has shown,245 in presence of an insoluble contradiction,
and we must try to explain, not how Aristotle reconciled
it with itself, for that was impossible, but how he reconciled
himself to it.
His analysis of individuality was the first step in this
direction. We have seen that he treats definition as a
process of gradual specification, beginning with the most
general notions, and working down by successive differentiations
to the most particular. Now, the completed conception is
itself the integration of all these differences, the bond of union
holding them together. Turning to an antithetical order of
ideas, to the material substance of which bodies are composed,
and its various transformations, we find him working out
the same vein of thought. According to the Aristotelian
chemistry, an ultimate indeterminate unknowable something
clothes itself with one or other of the opposing attributes, dry
and moist, hot and cold; and when two of these are combined,
manifests itself to our senses as one of the four elements.
The elements combine in a particular manner to form
homogeneous animal tissues, and these again are united into
heterogeneous organs, which together constitute the living
body. Here, then, we have two analogous series of specifications—one
conceptual and leading down from the abstract to
the concrete, the other physical, and leading up from the
vague, the simple, and the homogeneous, to the definite, the
complex, and the heterogeneous. Aristotle embraces both
processes under a single comprehensive generalisation. He
describes each of them as the continuous conversion of a
possibility into an actuality. For the sake of greater clearness,
let us take the liberty of substituting modern scientific
terms for his cumbrous and obsolete classifications. We
shall then say that the general notion, living thing, contains
under it the two less general notions—plant and animal. If we
only know of any given object that it has life, there is implied
the possibility of its being either the one or the other, but not
both together. On determining it to be (say) an animal, we
actualise one of the possibilities. But the actualisation is
only relative, and immediately becomes the possibility of
being either a vertebrate or an invertebrate animal. The
actuality vertebrate becomes the possibility of viviparous
or oviparous, and so on through successive differentiations
until we come (say) to a man. Now let us begin at the
material end. Here are a mass of molecules, which, in their
actual state are only carbon, nitrogen, and so forth. But
they are potential starch, gluten, water, or any other article
of food that might be named; for under favourable conditions
they will combine to form it. Once actualised as such, they
are possible blood-cells; these are possible tissues; these,
again, possible organs, and lastly we come to the consensus
of vital functions, which is a man. What the raw material is
to the finished product, that are the parts to the entire
organism, the elements to the compound, the genus to the
species, and such in its very widest sense is potency to
realisation, δύναμις to ἐντελέχεια, throughout the universe of
growth and decay.246
It will be observed that, so far, this famous theory does
not add one single jot to our knowledge. Under the guise of
an explanation, it is a description of the very facts needing
to be explained. We did not want an Aristotle to tell us
that before a thing exists it must be possible. We want to
know how it is possible, what are the real conditions of its
existence, and why they combine at a particular moment to
produce it. The Atomists showed in what direction the
solution should be sought, and all subsequent progress has
been due to a development of their method. Future ages
will perhaps consider our own continued distinction between
force and motion as a survival of the Peripatetic philosophy.
Just as sensible aggregates of matter arise not out of
potential matter, but out of matter in an extremely fine state
of diffusion, so also sensible motion will be universally traced
back, not to potential motion, which is all that force means,
but to molecular or ethereal vibrations, like those known to
constitute heat and light.
We have said, in comparing him with his predecessors,
that the Stagirite unrolled Greek thought from a solid into a
continuous surface. We have now to add that he gave his
surface the false appearance of a solid by the use of shadows,
and of aërial perspective. In other words, he made the
indication of his own ignorance and confusion do duty for
depth and distance. For to say that a thing is developed out
of its possibility, merely means that it is developed out of
something, the nature of which we do not know. And to
speak about such possibilities as imperfect existences, or
matter, or whatever else Aristotle may be pleased to call them,
is simply constructing the universe, not out of our ideas, but
out of our absolute want of ideas.
We have seen how, for the antithesis between Form and
Matter, was substituted the wider antithesis between Actuality
and Possibility. Even in this latter the opposition is more
apparent than real. A permanent possibility is only intelligible
through the idea of its realisation, and sooner or later is
certain to be realised. Aristotle still further bridges over the
interval between them by a new conception—that of motion.
Motion, he tells us, is the process of realisation, the transformation
of power into act. Nearly the whole of his Physics is
occupied with an enquiry into its nature and origin. As first
conceived, it is equivalent to what we call change rather than
to mechanical movement. The table of categories supplies
an exhaustive enumeration of its varieties. These are, as we
have already mentioned, alteration of quality or transformation,
increase or decrease of quantity, equivalent to growth
and decay, and transport from place to place. Sometimes a
fourth variety is added, derived from the first category,
substance. He calls it generation and destruction, the coming
into existence or passing out of it again. A careful analysis
shows that motion in space is the primordial change on which
all others depend for their accomplishment. To account for
it is the most vitally important problem in philosophy.
Before entering on the chain of reasoning which led
Aristotle to postulate the existence of a personal First Cause,
we must explain the difference between his scientific standpoint,
and that which is now accepted by all educated minds.
To him the eternity not only of Matter, but also of what
he called Form,—that is to say, the collection of attributes
giving definiteness to natural aggregates, more especially
those known as organic species—was an axiomatic certainty.
Every type, capable of self-propagation, that could exist at
all, had existed, and would continue to exist for ever. For
this, no explanation beyond the generative power of Nature
was required. But when he had to account for the machinery
by which the perpetual alternation of birth and death below,
and the changeless revolutions of the celestial spheres above
the moon were preserved, difficulties arose. He had reduced
every other change to transport through space; and with
regard to this his conceptions were entirely mistaken. He
believed that moving matter tended to stop unless it was
sustained by some external force; and whatever their advantages
over him in other respects, we cannot say that the
Atomists were in a position to correct him here: for their
theory, that every particle of matter gravitated downward
through infinite space, was quite incompatible with the latest
astronomical discoveries. Aristotle triumphantly showed that
the tendency of heavy bodies was not to move indefinitely
downwards in parallel lines, but to move in converging lines
to the centre of the earth, which he, in common with most
Greek astronomers, supposed to be also the centre of the
universe; and seeing light bodies move up, he credited them
with an equal and opposite tendency to the circumference of
the universe, which, like Parmenides and Plato, he believed to
be of finite extent. Thus each kind of matter has its appropriate
place, motion to which ends in rest, while motion away
from it, being constrained, cannot last. Accordingly, the
constant periodicity of terrestrial phenomena necessitates as
constant a transformation of dry and wet, and of hot and cold
bodies into one another. This is explained with perfect
accuracy by the diurnal and annual revolutions of the sun.
Here, however, we are introduced to a new kind of motion,
which, instead of being rectilinear and finite, is circular and
eternal. To account for it, Aristotle assumes a fifth element
entirely different in character from the four terrestrial elements.
Unlike them, it is absolutely simple, and has a correspondingly
simple mode of motion, which, as our philosopher erroneously
supposes, can be no other than circular rotation.
Out of this eternal unchanging divine substance, which he
calls aether, are formed the heavenly bodies and the transparent
spheres containing them. But there is something
beyond it of an even higher and purer nature. Aristotle
proves, with great subtlety, from his fundamental assumptions,
that the movement of an extended substance cannot be self-caused.
He also proves that motion must be absolutely continuous
and without a beginning. We have, therefore, no
choice but to accept the existence of an unextended, immaterial,
eternal, and infinite Power on which the whole
cosmos depends.
So much only is established in the Physics. Further particulars
are given in the twelfth book of the Metaphysics.
There we learn that, all movement being from possibility to
actuality, the source of movement must be a completely
realised actuality—pure form without any admixture of matter.
But the highest form known to us in the ascending scale of
organic life is the human soul, and the highest function of
soul is reason. Reason then must be that which moves without
being moved itself, drawing all things upwards and
onwards by the love which its perfection inspires. The eternal,
infinite, absolute actuality existing beyond the outermost
starry sphere is God. Aristotle describes God as the thought
which thinks itself and finds in the simple act of self-consciousness
an everlasting happiness, wonderful if it always
equals the best moments of our mortal life, more wonderful
still if it surpasses them. There is only one supreme God, for
plurality is due to an admixture of matter, and He is pure
form. The rule of many is not good, as Homer says. Let
there be one Lord.
Such are the closing words of what was possibly Aristotle’s
last work, the clear confession of his monotheistic creed. A
monotheistic creed, we have said, but one so unlike all other
religions, that its nature has been continually misunderstood.
While some have found in it a theology like that of the Jews
or of Plato or of modern Europe, others have resolved it into
a vague pantheism. Among the latter we are surprised to
find Sir A. Grant, a writer to whom the Aristotelian texts
must be perfectly familiar both in spirit and in letter. Yet
nothing can possibly be more clear and emphatic than the
declarations they contain. Pantheism identifies God with the
world; Aristotle separates them as pure form from form more
or less alloyed with matter. Pantheism denies personality to
God; Aristotle gives him unity, spirituality, self-consciousness,
and happiness. If these qualities do not collectively involve
personality, we should like to know what does. Need we
remind the accomplished editor of the Nicomachean Ethics
how great a place is given in that work to human self-consciousness,
to waking active thought as distinguished from
mere slumbering faculties or unrealised possibilities of action?
And what Aristotle regarded as essential to human perfection,
he would regard as still more essential to divine perfection.
Finally, the God of pantheism is a general idea; the God of
Aristotle is an individual. Sir A. Grant says that he (or it)
is the idea of Good.247 We doubt very much whether there is
a single passage in the Metaphysics to sanction such an expression.
Did it occur, however, that would be no warrant for
approximating the Aristotelian to the Platonic theology, in
presence of such a distinct declaration as that the First Mover is
both conceptually and numerically one,248 coming after repeated
repudiations of the Platonic attempt to isolate ideas from the
particulars in which they are immersed. Then Sir A. Grant
goes on to speak of the desire felt by Nature for God as being
itself God,249 and therefore involving a belief in pantheism.
Such a notion is not generally called pantheism, but hylozoism,
the attribution of life to matter. We have no desire, however,
to quarrel about words. The philosopher who believes in the
existence of a vague consciousness, a spiritual effort towards
something higher diffused through nature, may, if you will, be
called a pantheist, but not unless this be the only divinity he
recognises. The term is altogether misleading when applied
to one who also proclaims the existence of something in his
opinion far higher, better and more real—a living God, who
transcends Nature, and is independent of her, although she is
not independent of him.
We must also observe that the parallel drawn by Sir A.
Grant between the theology of Aristotle and that of John
Stuart Mill is singularly unfortunate. It is in the first place
incorrect to say that Mill represented God as benevolent but
not omnipotent. He only suggested the idea as less inconsistent
with facts than other forms of theism.250 In the next
place, Aristotle’s God was almost exactly the reverse of this.
He possesses infinite power, but no benevolence at all. He
has nothing to do with the internal arrangements of the world,
either as creator or as providence. He is, in fact, an egoist
of the most transcendent kind, who does nothing but think
about himself and his own perfections. Nothing could be
more characteristic of the unpractical Aristotelian philosophy;
nothing more repugnant to the eager English reformer, the
pupil of Bentham and of Plato. And, thirdly, Sir A. Grant
takes what is not the God of Aristotle’s system at all, but a
mere abstraction, the immanent reason of Nature, the Form
which can never quite conquer Matter, and places it on the
same line with a God who, however hypothetical, is nothing
if not a person distinct from the world; while, as if to bewilder
the unfortunate ‘English reader’ still further, he adds, in the
very next sentence, that ‘the great defect in Aristotle’s conception
of God is’ the denial ‘that God can be a moral
Being.’251
The words last quoted, which in a Christian sense are true
enough, lead us over to the contrasting view of Aristotle’s
theology, to the false theory of it held by critics like Prof. St.
George Mivart. The Stagirite agrees with Catholic theism in
accepting a personal God, and he agrees with the First Article
of the English Church, though not with the Pentateuch, in
saying that God is without parts or passions; but there his
agreement ceases. Excluding such a thing as divine interference
with nature, his theology of course excludes the possibility
of revelation, inspiration, miracles, and grace. Nor is this a
mere omission; it is a necessity of the system. If there can
be no existence without time, no time without motion, no
motion without unrealised desire, no desire without an ideal,
no ideal but eternally self-thinking thought—then it logically
follows that God, in the sense of such a thought, must not
interest himself in the affairs of men. Again, Aristotelianism
equally excludes the arguments by which modern theologians
have sought to prove the existence of God. Here also the
system is true to its contemporaneous, statical, superficial character.
The First Mover is not separated from us by a chain
of causes extending through past ages, but by an intervening
breadth of space and the wheels within wheels of a cosmic
machine. Aristotle had no difficulty in conceiving what some
have since declared to be inconceivable, a series of antecedents
without any beginning in time; it was rather the beginning of
such a series that he could not make intelligible to himself.
Nor, as we have seen, did he think that the adaptation in
living organisms of each part to every other required an
external explanation. Far less did it occur to him that the
production of impressions on our senses was due to the
agency of a supernatural power. It is absolutely certain that
he would have rejected the Cartesian argument, according to
which a perfect being must exist if it be only conceivable—existence
being necessarily involved in the idea of perfection.252
Finally, not recognising such a faculty as conscience, he
would not have admitted it to be the voice of God speaking
in the soul.
On the other hand, Aristotle’s own theistic arguments
cannot stand for a moment in the face of modern science.
We know by the law of inertia that it is not the continuance,
but the arrest or the beginning of motion which requires to
be accounted for. We know by the Copernican system that
there is no solid sidereal sphere governing the revolutions of
all Nature. And we know by the Newtonian physics that
gravitation is not dependent on fixed points in space for its
operation. The Philosophy of the Philosopher Aristotle is as
inconsistent with the demonstrations of modern astronomy as
it is with the faith of mediaeval Catholicism.
It remains to be seen whether the system which we are
examining is consistent with itself. It is not. The Prime
Mover, being unextended, cannot be located outside the sidereal
sphere; nor can he be brought into immediate contact
with it more than with any other part of the cosmos. If the
aether has a motion proper to itself, then no spiritual agency
is required to keep it in perpetual rotation. If the crystalline
spheres fit accurately together, as they must, to avoid leaving
a vacuum anywhere, there can be no friction, no production
of heat, and consequently no effect produced on the sublunary
sphere. Finally, no rotatory or other movement can, taken
alone, have any conceivable connexion with the realisation
of a possibility, in the sense of progress from a lower to
a higher state of being. It is merely the perpetual exchange
of one indifferent position for another.
We have now to consider what were the speculative
motives that led Aristotle to overlook these contradictions,
and to find rest in a theory even less satisfactory than the
earlier systems which he is always attacking with relentless
animosity. The first motive, we believe, was the train of
reasoning, already laid before the reader, by which universal
essences, the objects of knowledge, gradually came to be
identified with particular objects, the sole existing realities.
For the arguments against such an identification, as put
forward by our philosopher himself, still remained unanswered.
The individuals comprising a species were still too
transient for certainty and too numerous for comprehension.
But when for the antithesis between Form and Matter was
substituted the antithesis between Actuality and Possibility,
two modes of evasion presented themselves. The first was to
distinguish between actual knowledge and potential knowledge.
The former corresponded to existing particulars, the latter to
general ideas.253 This, however, besides breaking up the unity
of knowledge, was inconsistent with the whole tenor of
Aristotle’s previous teaching. What can be more actual than
demonstration, and how can there be any demonstration of
transient particulars? The other mode of reconciliation was
perhaps suggested by the need of an external cause to raise
Possibility into Actuality. Such a cause might be conceived
with all the advantages and without the drawbacks of a
Platonic Idea. It would be at once the moving agent and
the model of perfection; it could reconcile the general and
the particular by the simple fact of being eternal in time,
comprehensive in space, and unique in kind. Aristotle found
such a cause, or rather a whole series of such causes, in the
celestial spheres. In his system, these bear just the same
relation to terrestrial phenomena that Plato’s Ideas bear to
the world of sense. They are, in fact, the Ideas made sensible
and superficial, placed alongside of, instead of beneath or
behind, the transient particulars which they irradiate and
sustain.
The analogy may be carried even farther. If Plato
regarded the things of sense as not merely a veil, but an
imperfect imitation of the only true realities; so also did
Aristotle represent the sublunary elements as copying the
disposition and activities of the ethereal spheres. They too
have their concentric arrangements—first fire, then air, then
water, and lastly earth in the centre; while their perpetual
transformation into one another presents an image in time of
the spatial rotation which those sublime beings perform. And
although we think that Sir A. Grant is quite mistaken in
identifying Aristotle’s Supreme Mind with the Idea of Good,
there can be no doubt of its having been suggested by that
Idea. It is, in fact, the translation of Plato’s abstraction into
concrete reality, and the completion of a process which Plato
had himself begun. From another point of view we may say
that both master and disciple were working, each in his own
way, at the solution of a problem which entirely dominates
Greek philosophy from Empedocles on—the reconciliation
of Parmenides and Heracleitus, Being and Becoming,
the eternal and the changeful, the one and the many. Aristotle
adopts the superficial, external method of placing the
two principles side by side in space; and for a long time the
world accepted his solution for the same reason that had
commended it to his own acceptance, its apparent agreement
with popular tradition and with the facts of experience. It
must be confessed, however, that here also he was following
the lines laid down by Plato. The Timaeus and the Laws
are marked by a similar tendency to substitute astronomy
for dialectics, to study the celestial movements with religious
veneration, to rebuild on a scientific basis that ancient star-worship
which, even among the Greeks, enjoyed a much
higher authority and prestige than the humanised mythology
of the poets. But for Christianity this star-worship would
probably have become the official faith of the Roman world.
As it is, Dante’s great poem presents us with a singular
compromise between the two creeds. The crystalline
spheres are retained, only they have become the abode of
glorified spirits instead of being the embodiment of eternal
gods. We often hear it said that the Copernican system was
rejected as offensive to human pride, because it removed the
earth from the centre of the universe. This is a profound
mistake. Its offence was to degrade the heavenly bodies by
assimilating them to the earth.254 Among several planets, all
revolving round the sun, there could not be any marked
qualitative difference. In the theological sense there was no
longer any heaven; and with the disappearance of the solid
sidereal sphere there was no longer any necessity for a Prime
Mover.
There is, perhaps, no passage in Aristotle’s writings—there
is certainly none in his scientific writings—more eloquent
than that which describes the glory of his imaginary heavens.
The following translation may give some faint idea of its
solemnity and splendour:—
We believe, then, that the whole heaven is one and everlasting,
without beginning or end through all eternity, but holding infinite
time within its orb; not, as some say, created or capable of being
destroyed. We believe it on account of the grounds already stated,
and also on account of the consequences resulting from a different
hypothesis. For, it must add great weight to our assurance of its
immortality and everlasting duration that this opinion may, while the
contrary opinion cannot possibly, be true. Wherefore, we may
trust the traditions of old time, and especially of our own race, when
they tell us that there is something deathless and divine about the
things which, although moving, have a movement that is not bounded,
but is itself the universal bound, a perfect circle enclosing in its revolutions
the imperfect motions that are subject to restraint and
arrest; while this, being without beginning or end or rest through
infinite time, is the one from which all others originate, and into
which they disappear. That heaven which antiquity assigned to
the gods as an immortal abode, is shown by the present argument to
be uncreated and indestructible, exempt alike from mortal weakness
and from the weariness of subjection to a force acting in opposition
to its natural inclination; for in proportion to its everlasting continuance
such a compulsion would be laborious, and unparticipant in
the highest perfection of design. We must not, then, believe with
the old mythologists that an Atlas is needed to uphold it; for they,
like some in more recent times, fancied that the heavens were made
of heavy earthy matter, and so fabled an animated necessity for their
support; nor yet that, as Empedocles says, they will last only so
long as their own proper momentum is exceeded by the whirling
motion of which they partake.255 Nor, again, is it likely that their everlasting
revolution can be kept up by the exercise of a conscious will;
for no soul could lead a happy and blessed existence that was engaged
in such a task, necessitating, as it would, an unceasing struggle with
their native tendency to move in a different direction, without even
the mental relaxation and bodily rest which mortals gain by sleep,
but doomed to the eternal torment of an Ixion’s wheel. Our
explanation, on the other hand, is, as we say, not only more consistent
with the eternity of the heavens, but also can alone be reconciled
with the acknowledged vaticinations of religious faith.256
It will be seen from the foregoing passage how strong
a hold the old Greek notion of an encircling limit had on
the mind of Aristotle, and how he transformed it back from
the high intellectual significance given to it by Plato into its
original sense of a mere space-enclosing figure. And it will
also be seen how he credits his spheres with a full measure of
that moving power which, according to his rather unfair
criticism, the Platonic Ideas did not possess. His astronomy
also supplied him with that series of graduated transitions
between two extremes in which Greek thought so much
delighted. The heavenly bodies mediate between God and
the earth; partly active and partly passive, they both receive
and communicate the moving creative impulse. The four
terrestrial elements are moved in the various categories of
substance, quantity, quality, and place; the aether moves in
place only. God remains ‘without variableness or shadow of
a change.’ Finally, by its absolute simplicity and purity, the
aether mediates between the coarse matter perceived by our
senses and the absolutely immaterial Nous, and is itself
supposed to be pervaded by a similar gradation of fineness
from top to bottom. Furthermore, the upper fire, which
must not be confounded with flame, furnishes a connecting
link between the aether and the other elements, being related
to them as Form to Matter, or as agent to patient; and,
when the elements are decomposed into their constituent
qualities, hot and cold occupy a similar position with regard
to wet and dry.
In mastering Aristotle’s cosmology, we have gained the
key to his entire method of systematisation. Henceforth, the
Stagirite has no secrets from us. Where we were formerly
content to show that he erred, we can now show why he
erred; by generalising his principles of arrangement, we can
exhibit them still more clearly in their conflict with modern
thought. The method, then, pursued by Aristotle is to divide
his subject into two more or less unequal masses, one of which
is supposed to be governed by necessary principles, admitting
of certain demonstration; while the other is irregular, and
can only be studied according to the rules of probable
evidence. The parts of the one are homogeneous and concentrically
disposed, the movements of each being controlled
by that immediately outside and above it. The parts of the
other are heterogeneous and distributed among a number of
antithetical pairs, between whose members there is, or ought
to be, a general equilibrium preserved, the whole system
having a common centre which either oscillates from one
extreme to another, or holds the balance between them.
The second system is enclosed within the first, and is
altogether dependent on it for the impulses determining its
processes of metamorphosis and equilibration. Where the
internal adjustments of a system to itself or of one system to
the other are not consciously made, Aristotle calls them
Nature. They are always adapted to secure its everlasting
continuance either in an individual or a specific form.
Actuality belongs more particularly to the first sphere, and
possibility to the second, but both are, to a certain extent,
represented in each.
We have already seen how this fundamental division is
applied to the universe as a whole. But our philosopher is
not content with classifying the phenomena as he finds
them; he attempts to demonstrate the necessity of their dual
existence; and in so doing is guilty of something very like a
vicious circle. For, after proving from the terrestrial movements
that there must be an eternal movement to keep them
going, he now assumes the revolving aether, and argues that
there must be a motionless solid centre for it to revolve round,
although a geometrical axis would have served the purpose
equally well. By a still more palpable fallacy, he proceeds
to show that a body whose tendency is towards the centre,
must, in the nature of things, be opposed by another body
whose tendency is towards the circumference. In order to
fill up the interval created by this opposition, two intermediate
bodies are required, and thus we get the four elements—earth,
water, air, and fire. These, again, are resolved
into the antithetical couples, dry and wet, hot and cold, the
possible combinations of which, by twos, give us the four
elements once more. Earth is dry and cold, water cold and
wet, air wet and hot, fire hot and dry; each adjacent pair
having a quality in common, and each element being characterized
by the excess of a particular quality; earth is
especially dry, water cold, air wet, and fire hot. The common
centre of each antithesis is what Aristotle calls the First
Matter, the mere abstract unformed possibility of existence.
This matter always combines two qualities, and has the power
of oscillating from one quality to another, but it cannot, as a
rule, simultaneously exchange both for their opposites. Earth
may pass into water, exchanging dry for wet, but not so
readily into air, which would necessitate a double exchange at
the same moment.
Those who will may see in all this an anticipation of
chemical substitution and double decomposition. We can
assure them that it will be by no means the most absurd
parallel discovered between ancient and modern ideas. It is
possible, however, to trace a more real connexion between the
Aristotelian physics and mediaeval thought. We do not of
course mean the scholastic philosophy, for there never was
the slightest doubt as to its derivation; we allude to the
alchemy and astrology which did duty for positive science
during so many centuries, and even overlapped it down to the
time of Newton, himself an ardent alchemist. The superstitions
of astrology originated independently of the peripatetic
system, and probably long before it, but they were likely
to be encouraged by it instead of being repressed, as they
would have been by a less anthropomorphic philosophy.
Aristotle himself, as we have seen, limited the action of the
heavens on the sublunary sphere to their heating power; but,
by crediting them with an immortal reason and the pursuit
of ends unknown to us, he opened a wide field for conjecture
as to what those ends were, and how they could be ascertained.
That the stars and planets were always thinking and acting,
but never about our affairs, was not a notion likely to be
permanently accepted. Neither was it easy to believe that
their various configurations, movements, and names (the last
probably revealed by themselves) were entirely without significance.
From such considerations to the casting of horoscopes
is not a far remove. The Aristotelian chemistry would
still more readily lend itself to the purposes of alchemy. If
Nature is one vast process of transmutation, then particular
bodies, such as the metals, not only may, but must be convertible
into one another. And even those who rejected
Aristotle’s logic with scorn still clung to his natural philosophy
when it flattered their hopes of gain. Bacon kept the
theory of substantial forms. His originality consisted in
looking for a method by which any form, or assemblage of
forms might be superinduced at pleasure on the underlying
matter. The real development of knowledge pursued
a far different course. The great discoverers of the sixteenth
and seventeenth centuries achieved their success by absolutely
reversing the method of Aristotle, by bringing into fruitful
contact principles which he had condemned to barren isolation.
They carried terrestrial physics into the heavens; they
brought down the absoluteness and eternity of celestial law to
earth; they showed that Aristotle’s antithetical qualities were
merely quantitative distinctions. These they resolved into
modes of motion; and they also resolved all motions into one,
which was both rectilinear and perpetual. But they and their
successors put an end to all dreams of transmutation, when
they showed by another synthesis that all matter, at least
within the limits of our experience, has the changeless consistency
once attributed exclusively to the stellar spheres.
When Aristotle passes from the whole cosmos to the philosophy
of life, his method of systematic division is less distinctly
illustrated, but still it may be traced. The fundamental separation
is between body and soul. The latter has a wider
meaning than what we associate with it at present. It covers
the psychic functions and the whole life of the organism, which,
again, is not what we mean by life. For life with us is both
individual and collective; it resides in each speck of protoplasm,
and also in the consensus of the whole organism.
With Aristotle it is more exclusively a central principle, the
final cause of the organism, the power which holds it together,
and by which it was originally shaped. Biology begins by
determining the idea of the whole, and then considers the
means by which it is realised. The psychic functions are
arranged according to a system of teleological subordination.
The lower precedes the higher in time, but is logically necessitated
by it. Thus nutrition, or the vegetative life in general,
must be studied in close connexion with sensation and impulse,
or animal life; and this, again, with thought or pure reasoning.
On the other hand, anatomy and physiology are
considered from a purely chemical and mechanical point of
view. A vital purpose is, indeed, assigned to every organ,
but with no more reference to its specifically vital properties
than if it formed part of a steam engine. Here, as always with
Aristotle, the idea of moderation determines the point of view
whence the inferior or material system is to be studied.
Organic tissue is made up of the four elemental principles—hot,
cold, wet, and dry—mixed together in proper proportions;
and the object of organic function is to maintain them in due
equilibrium, an end effected by the regulating power of the
soul, which, accordingly, has its seat in the heart or centre of
the body. It has been already shown how, in endeavouring
to work out this chimerical theory, Aristotle went much
further astray from the truth than sundry other Greek physiologists
less biassed by the requirements of a symmetrical
method.
After the formal and material elements of life have been
separately discussed, there comes an account of the process
by which they are first brought into connexion, for this is how
Aristotle views generation. With him it is the information
of matter by psychic force; and his notions about the part
which each parent plays in the production of a new being
are vitiated throughout by this mistaken assumption. Nevertheless
his treatise on the subject is, for its time, one of the
most wonderful works ever written, and, as we are told on
good authority,257 is now less antiquated than the corresponding
researches of Harvey. The philosopher’s peculiar genius for
observation, analysis, and comparison will partly account for
his success; but, if we mistake not, there is another and less
obvious reason. Here the fatal separation of form and matter
was, except at first starting, precluded by the very idea of
generation; and the teleological principle of spontaneous efforts
to realise a predetermined end was, as it happened, perfectly
in accordance with the facts themselves.
And now, looking back on his cosmology, we can see that
Aristotle was never so near the truth as when he tried to
bridge over the gulf between his two spheres, the one corruptible
and the other eternal, by the idea of motion considered
as a specific property of all matter, and persisting through all
time; as a link between the celestial revolutions and the
changes occurring on or near the earth’s surface; and, finally,
as the direct cause of heat, the great agent acting in opposition
to gravity—which last view may have suggested Bacon’s
capital discovery, that heat is itself a mode of motion.
Another method by which Aristotle strove to overcome
the antithesis between life as a mechanical arrangement and
life as a metaphysical conception, was the newly created study
of comparative anatomy. The variations in structure and
function which accompany variations in the environment,
though statically and not dynamically conceived, bring us
very near to the truth that biological phenomena are subject
to the same general laws of causation as all other phenomena;
and it is this truth which, in the science of life, corresponds to
the identification of terrestrial with celestial physics in the
science of general mechanics. Vitality is not an individualised
principle stationed in the heart and serving only to
balance opposite forces against one another; but it is diffused
through all the tissues, and bestows on them that extraordinary
plasticity which responds to the actions of the environment
by spontaneous variations capable of being summed up in any
direction, and so creating entirely new organic forms without
the intervention of any supernatural agency.
We have now to consider how Aristotle treats psychology,
not in connexion with biology, but as a distinct science—a
separation not quite consistent with his own definition of soul,
but forced on him by the traditions of Greek philosophy and
by the nature of things. Here the fundamental antithesis
assumes a three-fold form. First the theoretical activity of
mind is distinguished from its practical activity; the one being
exercised on things which cannot, the other on things which
can, be changed. Again, a similar distinction prevails within
the special province of each. Where truth is the object, knowledge
stands opposed to sense; where good is sought, reason
rises superior to passion. The one antithesis had been introduced
into philosophy by the early physicists, the other by
Socrates. They were confounded in the psychology of Plato,
and Aristotle had the merit of separating them once more. Yet
even he preserves a certain artificial parallelism between them
by using the common name Nous, or reason, to denote the controlling
member in each. To make his anthropology still more
complex, there is a third antithesis to be taken into account,
that between the individual and the community, which also
sometimes slides into a partial coincidence with the other two.
Aristotle’s treatise on the soul is mainly devoted to a description
of the theoretical faculties—sense, and thought or
reason. By sense we become acquainted with the material
qualities of things; by thought with their forms or ideas. It
has been already mentioned that, according to our philosopher,
the organism is a system of contrary forces held in equilibrium
by the soul, whose seat he supposes to be in the heart. We
now learn that every sensation is a disturbance of this equilibrium.
In other words, the sensorium being virtually any
and every mode of matter, is raised from possibility to actuality
by the presence of some one force, such as heat or cold,
in sufficient strength to incline the balance that way. Here
we have, quite in Aristotle’s usual style, a description instead
of an explanation. The atomic notion of thin films thrown
off from the object of sense, and falling on the organs of sight
or touch, was but a crude guess; still it has more affinity with
the discoveries of a Young or a Helmholtz than scholastic
phrases about potentiality and actuality. That sensation
implies a disturbance of equilibrium is, indeed, an important
truth; only, the equilibrium must be conceived as a balance,
not of possible sensations, but of molecular states; that is to
say, it must be interpreted according to the atomic theory.
Aristotle is more successful when he proceeds to discuss
the imagination. He explains it to be a continuance of the
movement originally communicated by the felt object to the
organ of sense, kept up in the absence of the object itself;—as
near an approach to the truth as could be made in his time.
And he is also right in saying that the operations of reason
are only made possible by the help of what he calls phantasms—that
is, faint reproductions of sensations. In addition to
this, he points out the connexion between memory and imagination,
and enumerates the laws of association briefly, but
with great accuracy. He is, however, altogether unaware of
their scope. So far from using them to explain all the mental
processes, he does not even see that they account for involuntary
reminiscence, and limits them to the voluntary operation
by which we recall a missing name or other image to consciousness.
So far, Aristotle regards the soul as a function, or energy,
or perfection of the body, from which it can no more be separated
than vision from the eye. It is otherwise with the
part of mind which he calls Nous, or Reason—the faculty
which takes cognisance of abstract ideas or the pure forms of
things. This corresponds, in the microcosm, to the eternal
Nous of the macrocosm, and, like it, is absolutely immaterial,
not depending for its activity on the exercise of any bodily
organ. There is, however, a general analogy between sensation
and thought considered as processes of cognition. Previous
to experience, the Nous is no thought in particular, but
merely a possibility of thinking, like a smooth wax tablet
waiting to be written on. It is determined to some particular
idea by contact with the objective forms of things, and in this
determination is raised from power to actuality. The law of
moderation, however, does not apply to thought. Excessive
stimulation is first injurious and then destructive to the
organs of sense, but we cannot have too much of an idea; the
more intense it is the better are we able to conceive all the
ideas that come under it, just because ideation is an incorporeal
process. And there seems to be this further distinction
between sensation and thought, that the latter is much more
completely identified with its object than the former; it is in
the very act of imprinting themselves on the Nous that the
forms of things become perfectly detached from matter, and
so attain their final realisation. It is only in our consciousness
that the eternal ideas of transient phenomena become
conscious of themselves. Such, we take it, is the true interpretation
of Aristotle’s famous distinction between an active
and a passive Nous. The one, he tells us, makes whatever
the other is made. The active Nous is like light raising
colours from possibility to actuality. It is eternal, but we have
no remembrance of its past existence, because the passive
Nous, without which it can think nothing, is perishable.
It will be seen that we do not consider the two kinds of
Nous to differ from each other as a higher and a lower faculty.
This, in our opinion, has been the great mistake of the commentators,
of those, at least, who do not identify the active
Nous with God, or with some agency emanating from God—a
hypothesis utterly inconsistent with Aristotle’s theology.
They describe it as a faculty, and as concerned with some
higher kind of knowledge than what lies within the reach of
the passive Nous.258 But with Aristotle faculty is always a
potentiality and a passive recipient, whereas the creative
reason is expressly declared to be an actuality, which, in this
connexion, can mean nothing but an individual idea. The
difficulty is to understand why the objective forms of things
should suddenly be spoken of as existing within the mind,
and denominated by a term carrying with it such subjective
associations as Nous; a difficulty not diminished by the mysterious
comparison with light in its relation to colour, an illustration
which, in this instance, has only made the darkness
visible. We believe that Aristotle was led to express himself
as he did by the following considerations. He began by
simply conceiving that, just as the senses were raised from
potency to actuality through contact with the corresponding
qualities in external objects, so also was the reasoning faculty
moulded into particular thoughts through contact with the
particular things embodying them; thus, for instance, it was
led to conceive the general idea of straightness by actual experience
of straight lines. It then, perhaps, occurred to him
that one and the same object could not produce two such
profoundly different impressions as a sensation and a thought;
that mind was opposed to external realities by the attribute
of self-consciousness; and that a form inherent in matter could
not directly impress itself on an immaterial substance. The
idea of a creative Nous was, we think, devised in order to
escape from these perplexities. The ideal forms of things are
carried into the mind, together with the sensations, and in
passing through the imagination, become purified from the
matter previously associated with them. Thus they may be
conceived as part of the mind—in, though not yet of it—and as
acting on its highest faculty, the passive Nous. And, by a
kind of anticipation, they are called by the name of what they
become completely identified with in cognition. As forms of
things they are eternal; as thoughts they are self-conscious;
while, in both capacities, they are creative, and their creative
activity is an essentially immaterial process. Here we have
the old confusion between form and function; the old
inability to reconcile the claims of the universal and the particular
in knowledge and existence. After all, Aristotle is
obliged to extract an actuality from the meeting of two possibilities,
instead of from the meeting of an actuality and a
possibility. Probably the weakness of his own theory did not
escape him, for he never subsequently recurs to it.259
Aristotle’s work on reproduction is supposed by many to
contain a reference to his distinction between the two Reasons,
but we are convinced that this is a mistake. What we are
told is that at the very first formation of a new being, the
vegetative soul, being an exclusively corporeal function, is
precontained in the elements furnished by the female; that
the sensitive soul is contributed by the male (being, apparently,
engendered in the semen by the vital heat of the parent
organism); and, finally, that the rational soul, although entirely
immaterial, is also carried in with the semen, into which it
has first been introduced from without, but where, or when,
or how is not more particularly specified.260 But even were
the genetic theory in question perfectly cleared up, it would
still throw no light on the distinction between active and passive
reason, as the latter alone can be understood by the
rational soul to which it refers. For we are expressly informed—what
indeed hardly required to be stated—that the embryonic
souls exist not in act but in potency.261 It seems, therefore,
that Mr. Edwin Wallace is doubly mistaken when he
quotes a sentence from this passage in justification of his
statement, that ‘Aristotle would seem almost to identify’ the
creative reason ‘with God as the eternal and omnipresent
thinker;’262 first, because it does not refer to the creative Nous
at all; and, secondly, because, if it did, the words would not
stand the meaning which he puts upon them.263
But if even so little as this remains unproved, what are we
to think of the astounding assertion, that ‘Aristotle’s theory
of a creative reason, fragmentary as that theory is left, is
the answer to all materialistic theories of the universe. To
Aristotle, as to a subtle Scottish preacher,264 “the real pre-supposition
of all knowledge, or the thought which is the prius of
all things, is not the individual’s consciousness of himself as
individual, but a thought or self-consciousness which is beyond
all individual selves, which is the unity of all individual selves,
and their objects, of all thinkers and all objects of thought.”’265
How can materialism or anything else be possibly refuted by
a theory which is so obscurely set forth that no two interpreters
are able to agree in their explanation of it? And even were
it stated with perfect clearness and fulness, how can any
hypothesis be refuted by a mere dogmatic declaration of
Aristotle? Are we back in the Middle Ages that his ipse
dixit is to decide questions now raised with far ampler means
of discussion than he could possess? As to Principal Caird’s
metaphysics, we have no wish to dispute their theoretic
accuracy, and can only admire the liberality of a Church in
which propositions so utterly destructive of traditional orthodoxy
are allowed to be preached. But one thing we are
certain of, and that is, that whether or not they are consistent
with Christian theism, they are utterly inconsistent with
Aristotelian principles. Which is the ‘thought or self-consciousness’
referred to, a possibility or an actuality? If the
former, it is not a prius, nor is it the creative reason. If the
latter, it cannot transcend all or any individual selves, for,
with Aristotle, individuals are the sole reality, and the
supreme being of his system is pre-eminently individual;
neither can it unify them, for, according to Aristotle, two
things which are two in actuality cannot be one in actuality.266
We now turn to Sir A. Grant, who, as was mentioned at
the beginning of the last chapter, makes Aristotle a supporter
of the late Prof. Ferrier. We will state the learned Principal’s
view in his own words:—
‘His utterances on this subject [the existence of an external world]
are perhaps chiefly to be found in the third book of his treatise “On
the Soul,” beginning with the fourth chapter. On turning to them
we see that he never separates existence from knowledge. “A thing
in actual existence,” he says, “is identical with the knowledge of that
thing.” Again, “The possible existence of a thing is identical with
the possibility in us of perceiving or knowing it.” Thus, until a thing
is perceived or known, it can only be said to have a potential or
possible existence. And from this a doctrine very similar to that of
Ferrier might be deduced, that “nothing exists except plus me,”—that
is to say, in relation to some mind perceiving it.‘ (Aristotle, p. 165.)
After much searching, we have not been able to find the
originals of the two passages quoted by Sir A. Grant. We
have, however, found others setting forth the doctrine of
Natural Realism with a clearness which leaves nothing to be
desired. Aristotle tells us that former naturalists were wrong
when they said that there could be no black or white without
vision, and no taste without tasting; that is, they were right
about the actuality, and wrong about the possibility; for, as
he explains, our sensations are produced by the action of
external bodies on the appropriate organs, the activity being
the same while the existence is different. A sonorous body
produces a sound in our hearing; the sound perceived and
the action of the body are identical, but not their existence;
for, he adds, the hearer need not be always listening, nor the
sonorous body sounding; and so with all the other senses.267
This is not making the percipi of objects their esse. Again,
in the eighth chapter he tells us that the soul is ‘in a certain
way’ (πῶς) all things, since all things are either sensible or
cogitable; and then he proceeds to explain what is meant by
‘in a certain way.’ Sense and knowledge are distributed over
things in such wise that their possibility is the possibility, and
their actuality the actuality, of the things. They must, then,
be either the things themselves or their forms. ‘But the
things themselves they are surely not, for the stone is not in the
soul, but its form.’ In the Metaphysics, Aristotle expresses
himself to the same effect, but even more explicitly. Criticising
the Protagorean doctrine, he reduces it to an absurdity by
urging that if there were nothing but sensibles, then nothing
at all could exist in the absence of animated beings, for
without them there would be no sensation. He admits that in
the case supposed there would be neither feelings nor felt
objects, since these presuppose a sentient subject; but adds,
that for the substances (τὰ ὑποκείμενα) which produce the feeling
not to exist is impossible; ‘for there is something else
besides the feeling which must necessarily exist before it.’268
And immediately afterwards he clinches the argument by observing
that if appearances were the only truth, there would
be no independent existences, and everything would be relative,
since appearances exist only in relation to some one to
whom they appear. Now we need hardly say that this universal
relativity was precisely what Ferrier contended for.
Sir A. Grant is on stronger, or rather on more inaccessible
ground, when he uses the distinction between the two reasons
as involving a sort of idealistic theory, because here Aristotle’s
meaning is much less clearly expressed. Yet, if our interpretation
be the correct one, if the creative Nous simply means
the forms of things acting through the imagination on the
possibilities of subjective conception, Aristotle’s view will be
exactly the reverse of that contended for by Sir Alexander;
thought, instead of moulding, will itself be moulded by external
reality. In no case have we a right to set an obscure
and disputed passage against Aristotle’s distinct, emphatic,
and reiterated declarations, that sensation and ideation are
substantially analogous processes, taken together with his
equally distinct declaration, that the objects of sensation are
independent of our feelings. We think, indeed, that Sir A.
Grant will find, on reconsideration, that he is proving too
much. For, if the things which reason creates were external
to the mind, then Aristotle would go at least as far as those
‘extreme German idealists’ from whom his expositor is
anxious to separate him. Finally, we would observe that to
set up Aristotle’s distinction between form and matter in
opposition to the materialistic theories of the present day,
shows a profound misconception of its meaning. Form and
matter are nowhere distinguished from one another as subject
and object. Form simply means the attributes of a thing, the
entire aggregate of its differential characteristics. But that
this does not of itself amount to conscious reason we are told
by Aristotle himself.269 On the other hand, the ‘matter’ to
which ‘some philosophers’ attribute ‘an independent existence,’
is not his ‘matter’ at all, but just the sum of things
minus consciousness. The Stagirite did not, it is true, believe
in the possibility of such a universe, but only (as we have
shown) because he was not acquainted with the highest laws
of motion. Yet, even taking ‘matter’ in his own technical
sense, Aristotle would have agreed with Prof. Tyndall, that
it contained the promise and the potency of all future life,
reason alone excepted. He tells us very clearly that the
sensitive soul is a somatic function, something which, although
not body, belongs to body; and this we conceive is all that
any materialist would now contend for.270 And having gone
so far, there really was nothing to prevent him from going a
step farther, had he only been acquainted with the dependence
of all intelligence on nervous action. At any rate, the tendency
is now to obliterate the distinction where he drew it,
and to substitute for it another distinction which he neglected.
While all functions of consciousness, from the most elementary
sensation to the most complex reasoning, seem to pass into
one another by imperceptible gradations, consciousness in
general is still separated from objective existence by an impassable
chasm; and if there is any hope of reconciling them
it lies in the absolute idealism which he so summarily rejected.
What we have had occasion repeatedly to point out in other
departments of his system, is verified once more in his psychology.
The progress of thought has resulted from a
reunion of the principles between which he drew a rigid demarcation.
We have found that perception can only be understood
as a process essentially homogeneous with the highest
thought, and neither more nor less immaterial than it is. On
the objective side, both may be resolved into sensori-motor
actions; on the subjective side, into groups of related feelings.
And here, also, we have to note that when Aristotle anticipates
modern thought, it is through his one great mediating,
synthetic conception. He observes incidentally that our knowledge
of size and shape is acquired, not through the special
senses, but by motion—an aperçu much in advance of Locke.271
If there are any who value Aristotle as a champion of
spiritualism, they must take him with his encumbrances. If
his philosophy proves that one part of the soul is immaterial,
it proves equally that the soul, taking it altogether, is perishable.
Not only does he reject Plato’s metempsychosis as
inconsistent with physiology, but he declares that affection,
memory, and reasoning are functions not of the eternal Nous,
but of the whole man, and come to an end with his dissolution.
As to the active Nous, he tells us that it cannot think without
the assistance of the passive Nous, which is mortal. And there
are various passages in the ‘Nicomachean Ethics’ showing that
he had faced this negation of a future life, and was perfectly resigned
to its consequences.272 At one period of his life, probably
when under the immediate influence of Plato, he had indulged
in dreams of immortality; but a profounder acquaintance
with natural science sufficed to dissipate them. Perhaps a
lingering veneration for his teacher made him purposely use
ambiguous language in reference to the eternity of that
creative reason which he had so closely associated with self-consciousness.
It may remind us of Spinoza’s celebrated
proposition, Sentimus experimurque nos aeternos esse, words
absolutely disconnected with the hope of a continued existence
of the individual after death, but apparently intended to enlist
some of the sentiment associated with that belief on the side
of the writer’s own philosophy.
On the other hand, the spirit of Plato’s religion survived in
the teaching of his disciple under a new form. The idea of an
eternal personality was, as it were, unified and made objective
by being transferred from the human to the divine; and so each
philosopher developes an aspect of religious faith which is
wanting in the other, thereby illustrating the tendencies, to
some extent mutually exclusive; which divide all theology
between them. It remains to observe that if even Aristotle’s
theism is inconsistent with the Catholic faith, much more must
his psychology be its direct negation. The Philosophy of the
Philosopher is as fatal to the Church’s doctrine of future
rewards and punishments as it is to her doctrine of divine
interference with the usual order of nature.
We now pass to the consideration of Aristotle’s most
important achievement—his system of logic. And as, here
also, we shall find much to criticise, it is as well to begin by
saying that, in our opinion, his contributions to the science
are the most valuable ever made, and perhaps have done
more to advance it than all other writings on the same subject
put together.
The principal business of reason is, as we have seen, to
form abstract ideas or concepts of things. But before the
time of Aristotle it had already been discovered that concepts,
or rather the terms expressing them, were capable of
being united in propositions which might be either true or
false, and whose truth might be a matter either of certainty
or of simple opinion. Now, in modern psychology, down to
the most recent times, it has always been assumed that, just
as there is an intellectual faculty or operation called abstraction
corresponding to the terms of which a proposition is
composed, so also there is a faculty or operation called judgment
corresponding to the entire proposition. Sometimes,
again, the third operation, which consists in linking propositions
together to form syllogisms, is assigned to a distinct
faculty called reason; sometimes all three are regarded as
ascending steps in a single fundamental process. Neither
Plato nor Aristotle, however, had thought out the subject so
scientifically. To both the framing, or rather the discovery,
of concepts was by far the most important business of a
philosopher, judgment and reasoning being merely subsidiary
to it. Hence, while in one part of their logic they were realists
and conceptualists, in other parts they were nominalists.
Abstract names and the definitions unfolding their connotation
corresponded to actual entities in Nature—the eternal
Ideas of the one and the substantial forms of the other—as
well as to mental representations about whose existence they
were agreed, while ascribing to them a different origin. But
they did not in like manner treat propositions as the expression
of natural laws without, or of judgments within, the
mind; while reasoning they regarded much more as an art of
thinking, a method for the discovery of ideas, than as the
Systematisation of a process spontaneously performed by
every human being without knowing it; and, even as such,
their tendency is to connect it with the theory of definition
rather than with the theory of synthetic propositions. Some
approach to a realistic view is, indeed, made by both. The
restless and penetrating thought of Plato had, probably
towards the close of his career, led him to enquire into the
mutual relations of those Ideas which he had at first been inclined
to regard as absolutely distinct. He shows us in the
Sophist how the most abstract notions, such as Being, Identity,
and so forth, must, to a certain extent, partake of each
other’s nature; and when their relationship does not lie on
the surface, he seeks to establish it by the interposition of a
third idea obviously connected with both. In the later books
of the Republic he also points to a scheme for arranging his
Ideas according to a fixed hierarchy resembling the concatenation
of mathematical proofs, by ascending and descending
whose successive gradations the mind is to become familiarised
with absolute truth; and we shall presently see how Aristotle,
following in the same track, sought for a counterpart to his
syllogistic method in the objective order of things. Nevertheless,
with him, as well as with his master, science was not
what it is with us, a study of laws, a perpetually growing body
of truth, but a process of definition and classification, a
systematisation of what had already been perceived and
thought.
It was from the initiative of Socrates that logic received
this direction. By insisting on the supreme importance of
definition, he drew away attention from the propositions
which add to our knowledge, and concentrated it on those
which only fix with precision the meaning of words. Yet, in
so doing he was influenced quite as much by the spirit of the
older physical philosophy, which he denounced, as by the
necessities of the new humanistic culture, which he helped to
introduce. His definitions were, in truth, the reproduction,
on a very minute scale, of those attempts to formulate the
whole universe which busied the earliest Ionian speculation.
Following the natural tendency of Greek thought, and
the powerful attraction of cosmic philosophy, an effort was
speedily made to generalise and connect these partial definitions
until they grew into a system of universal classification.
It was when, under the influence of a new analysis, this
system threatened to fall to pieces, that a rudimentary doctrine
of judgment first made its appearance. The structure of a
grammatical sentence was used to explain how objective
ideas could, in a manner, overlap and adhere to one another.
Hence propositions, which, as the expression of general truths,
were destined to become the beginning and end of thought,
remained at first strictly subordinated to the individual concepts
that they linked and reconciled.
With Aristotle propositions assumed a new importance.
He looked on them as mediating, not only between concepts,
but also between conception and reasoning. Still, neither as
a psychologist nor as a logician did he appreciate them at their
real value. A very brief consideration is given to judgment
in his work on the soul, and we are left in doubt whether it is
a function of Nous alone or of Nous combined with some other
faculty. Setting aside the treatise on Interpretation, which
is probably spurious, and, at any rate, throws no new light on
the subject, we may gather from his logical writings half a
dozen different suggestions towards a classification of propositions,
based partly on their form and partly on their import.
In all we find an evident tendency to apply, here also, his
grand fundamental distinction between the sphere of uniformity
and the sphere of change and opposition. All propositions
are either universal or particular; either positive or negative;
either necessary or actual or contingent; either reciprocating
or not reciprocating; either essential or accidental; either
answering to the first question in the categories, or to one of
the other nine.273 But nowhere is any attempt made to combine
and systematise these various points of view.
In the theory of reasoning the simple proposition is taken
as a starting-point; but instead of deducing the syllogism
from the synthesis of two premises, Aristotle reaches the
premises through the conclusion. He tells us, indeed, that
reasoning is a way of discovering from what we know, something
that we did not know before. With him, however, it is
really a process not of discovery but of proof. He starts
with the conclusion, analyses it into predicate and subject or
major and minor, and then, by a further analysis, introduces
a middle term connecting the two. Thus, we begin with the
proposition, ‘Caius is mortal,’ and prove it by interpolating
the notion humanity between its two extremes. From this
point of view the premises are merely a temporary scaffolding
for bringing the major and minor into connexion with the
middle term; and this is also the reason why Aristotle recognises
three syllogistic figures only, instead of the four admitted
by later logicians. For, the middle may either be
contained in one extreme and contain the other, which gives
us the first figure; or it may contain both, which gives the
second figure; or be contained in both, which gives the
third; and this is an exhaustive enumeration of the possible
combinations.274
We have here, also, the secret of that elaborate machinery
devised for the very unnecessary purpose of converting syllogisms
of the second and third figure into syllogisms of the first,
which is one of the Stagirite’s principal contributions to logic.
For it is only in the first figure that the notion by which the
extremes are either united or held apart is really a middle
term, that is to say, really comes between the others. The
distinction between perfect and imperfect syllogisms also
serves to illustrate Aristotle’s systematic division between
the necessary and the contingent. The method of proof by
inclusion corresponds in its unconditioned and independent
validity to the concentric arrangement of the supernal spheres;
the second and third figures, with their conversions and reductions,
to the sublunary sphere in its helpless dependence on
the celestial revolutions, and its transformations of the elements
into one another.
The rules which Aristotle gives us for the conversion of
propositions are no doubt highly instructive, and throw great
light on their meaning; but one cannot help observing that
such a process as conversion ought, on his own principles, to
have been inadmissible. With Plato, the copulation of subject
and predicate corresponded to an almost mechanical
juxtaposition of two self-existent ideas. It was, therefore, a
matter of indifference in what order they were placed. Aristotle,
on the other hand, after insisting on the restoration of
the concrete object, and reducing general notions to an
analysis of its particular aspects, could not but make the predicate
subordinate to, and dependent on, the subject—a relation
which altogether excludes the logical possibility of
making them interchangeable with one another.275
The antithetical structure of the whole system is reproduced
even in the first syllogistic figure, where there is a
similar opposition between the first mood, by which alone
universal affirmatives can be obtained, and the remaining three,
whose conclusions are either negative or particular, or both.
And the complicated rules for testing the validity of those
syllogisms in which the premises are distinguished as necessary,
actual, and possible, are still more obviously based on
Aristotle’s false metaphysical distinctions; so that with the
overthrow of those distinctions large portions of the Analytics
lose their entire value for modern students.
On the other hand, a theory of reasoning based on the
relations of concepts, instead of on the relations of judgments,
necessarily leaves out of account the whole doctrine of hypothetical
and disjunctive propositions, together with that of
the syllogisms based on them; since the elements of which
they are composed are themselves propositions. And this
inevitable omission is the more remarkable because alternative
and, to a less extent, hypothetical arguments form the
staple of Aristotle’s own dialectic; while categorical reasoning
never occurs in it at all. His constant method is to enumerate
all possible views of a subject, and examine them one after
the other, rejecting those which are untenable, and resting
content with the remainder. In other words, he reaches his
positive conclusions through a series of negative premises
representing a process of gradual elimination. The First
Analytics is itself an admirable instance of his favourite
method. Every possible combination of terms is discussed,
and the valid moods are sifted out from a much greater
number of illegitimate syllogisms. The dialectic of Socrates
and Plato followed the same procedure. It was essentially
experimental—a method of trial, elimination, and selection.
On going back still further, we find that when there is any
reasoning at all in Homer, it is conducted after the same
fashion. Hector, in his soliloquy before the Scaean Gate,
imagines three alternative courses, together exhausting the
possibilities of the situation. He may either retreat within
the walls, or offer terms of peace to Achilles, or fight. The
first two alternatives being rejected, nothing remains but the
third. This is the most elaborate example; but on many
other occasions Homer’s actors are represented as hesitating
between two courses, and finally deciding on one of them.
Disjunction is, in truth, the primordial form of all reasoning,
out of which the other forms are successively evolved;
and, as such, it is common to man with the lower animals.
You are taking a walk in the country with your dog. You
come to a stream and jump over it. On measuring the
distance with his eye, the animal is afraid to follow you.
After waiting a little, he first runs up stream in search of a
crossing, and, finding none, returns to look for one in the opposite
direction. Failing there also, he comes back once more, and
either ventures on the leap or makes his way home by some
other route. Now, on considering the matter a little more
closely, we shall find that hypothetical reasoning takes its rise
from the examination of each separate alternative presented
by a disjunctive premise. A plurality of courses being open
to us, we consider what will ensue on the acceptance or rejection
of each. The dog in our illustration thinks (after a
canine fashion) that if he jumps he may fall in; if he does not,
he will be left behind. Hector will not take refuge within the
walls, because, if he does, Polydamas will triumph over him;
nor will he offer terms of peace, because, if he does, Achilles
will refuse them. Once more, categorical reasoning is developed
out of hypothetical reasoning by the necessity of
deducing consequences from a general rule. Hector must
have argued from the known characters of Polydamas and
Achilles, that in certain circumstances they would act after a
certain manner. We may add, that this progress of conscious
reasoning is a reproduction of the unconscious logic according
to which life itself is evolved. All sorts of combinations are
spontaneously produced, which, in consequence of the struggle
for existence, cannot all survive. Those adapted to the conditions
of life are selected, on trial, at the expense of the rest;
and their adaptation or non-adaptation is determined in
accordance with categorical laws. Furthermore, the framing
of a disjunctive proposition necessitates the systematic
distribution of possibilities under mutually exclusive heads,
thus involving the logical processes of definition, division, and
classification. Dialectic, as Plato understood it, consisted
almost entirely in the joint performance of these operations;—a
process which Aristotle regards as the immediate but
very imperfect precursor of his own syllogistic method.276 You
cannot, he says, prove anything by dividing, for instance, all
living things into the two classes, mortal and immortal; unless,
indeed, you assume the very point under discussion—to
which class a particular species belongs. Yet this is how he
constantly reasons himself; and even demonstrative reasoning,
as he interprets it, implies the possession of a ready-made
classification. For, according to him, it consists exclusively
of propositions which predicate some essential attribute of
a thing—in other words, some attribute already included in
the definition of the subject; and a continuous series of
such definitions can only be given by a fixed classification of
things.
We have endeavoured to show that Aristotle’s account of
the syllogism is redundant on the one side and defective on
the other, both errors being due to a false analysis of the
reasoning process itself, combined with a false metaphysical
philosophy. The same evil influences tell with much greater
effect on his theory of applied reasoning. Here the fundamental
division, corresponding to that between heaven and earth in
the cosmos, is between demonstration and dialectic or experimental
reasoning. The one starts with first principles of
unquestionable validity, the other with principles the validity
of which is to be tested by their consequences. Stated in its
most abstract form, the distinction is sound, and very nearly
prefigures the modern division between deduction and induction,
the process by which general laws are applied, and
the process by which they are established. Aristotle,
however, committed two great mistakes; he thought that
each method corresponded to an entirely different order of
phenomena: and he thought that both were concerned for
the most part with definitions. The Posterior Analytics, which
contains his theory of demonstration, answers to the astronomical
portion of his physics; it is the doctrine of eternal
and necessary truth. And just as his ontology distinguishes
between the Prime Mover himself unmoved and the eternal
movement produced by his influence, so also his logic distinguishes
between infallible first principles and the truths
derived from them, the latter being, in his opinion, of inferior
value. Now, according to Aristotle, these first principles are
definitions, and it is to this fact that their self-evident certainty
is due. At the same time they are not verbal but real definitions—that
is to say, the universal forms of things in themselves
as made manifest to the eye of reason, or rather,
stamped upon it like the impression of a signet-ring on wax.
And, by a further refinement, he seems to distinguish between
the concept as a whole and the separate marks which make
it up, these last being the ultimate elements of all existence,
and as much beyond its complex forms as Nous is beyond
reasoned truth.
Such a view was essentially unfavourable to the progress
of science, assigning, as it did, a higher dignity to meagre and
very questionable abstractions than to the far-reaching combinations
by which alone we are enabled to unravel the inmost
texture of visible phenomena. Instead of using reason to
supplement sense, Aristotle turned it into a more subtle and
universal kind of sense; and if this disastrous assimilation
was to a certain extent imposed upon him by the traditions
of Athenian thought, it harmonised admirably with the descriptive
and superficial character of his own intelligence.
Much was also due to the method of geometry, which in his
time had already assumed the form made familiar to us by
Euclid’s Elements. The employment of axioms side by side
with definitions, might, indeed, have drawn his attention to
the existence and importance of judgments which, in Kantian
terminology, are not analytic but synthetic—that is, which
add to the content of a notion instead of simply analysing it.
But although he mentions axioms, and states that mathematical
theorems are deduced from them, no suspicion of their essential
difference from definitions, or of the typical significance
which they were destined to assume in the theory of reasoning,
seems ever to have crossed his mind; otherwise he could
hardly have failed to ask how we come by our knowledge of
them, and to what they correspond in Nature. On the whole,
it seems likely that he looked on them as an analysis of our
ideas, differing only from definition proper by the generality
of its application; for he names the law of contradiction
as the most important of all axioms, and that from
which the others proceed;277 next to it he places the law of
excluded middle, which is also analytical; and his only other
example is, that if equals be taken from equals the remainders
are equal, a judgment the synthetic character of which
is by no means clear, and has occasionally been disputed.278
We cannot, then, agree with those critics who attribute to
Aristotle a recognition of such things as ‘laws of nature,’ in
the sense of uniform co-existences and sequences.279 Such an
idea implies a certain balance and equality between subject
and predicate which he would never have admitted. It would,
in his own language, be making relation, instead of substance,
the leading category. It must be remembered also that he
did not acknowledge the existence of those constant conjunctions
in Nature which we call laws. He did not admit that
all matter was heavy, or that fluidity implied the presence of
heat. The possession of constant properties, or rather of a
single constant property—circular rotation—is reserved for
the aether. Nor is this a common property of different and
indefinitely multipliable phenomena; it characterises a single
body, measurable in extent and unique in kind. Moreover,
we have something better than indirect evidence on this
point; we have the plain statement of Aristotle himself, that
all science depends on first principles, about which it is impossible
to be mistaken, precisely because they are universal
abstractions not presented to the mind by any combination,280—a
view quite inconsistent with the priority now given
to general laws.
Answering to the first principles of demonstration in logic,
if not absolutely identical with them, are what Aristotle calls
causes in the nature of things. We have seen what an important
part the middle term plays in Aristotle’s theory of the
syllogism. It is the vital principle of demonstration, the connecting
link by which the two extreme terms are attached to
one another. In the theory of applied logic, whose object is
to bring the order of thought into complete parallelism with
the order of things, the middle term through which a fact is
demonstrated answers to the cause through which it exists.
According to our notions, only two terms, antecedent and
consequent, are involved in the idea of causation; and causation
only becomes a matter for reasoning when we perceive
that the sequence is repeated in a uniform manner. But
Aristotle was very far from having reached, or even suspected,
this point of view. A cause is with him not a determining
antecedent, but a secret nexus by which the co-existence of
two phenomena is explained. Instead of preceding it intercedes;
and this is why he finds its subjective counterpart in
the middle term of the syllogism. Some of his own examples
will make the matter clearer. Why is the moon eclipsed?
Because the earth intervenes between her and the sun. Why
is the bright side of the moon always turned towards the sun?
Because she shines by his reflected light (here light is the
middle term). Why is that person talking to the rich man?
Because he wants to borrow money of him. Why are those
two men friends? Because they have the same enemy.281
Aristotle even goes so far as to eliminate the notion of
sequence from causation altogether. He tells us that the
causes of events are contemporary with the events themselves;
those of past events being past; of present events, present;
and of future events, future. ‘This thing will not be because
that other thing has happened, for the middle term must be
homogeneous with the extremes.’282 It is obvious that such a
limitation abolishes the power of scientific prediction, which,
if not the only test of knowledge, is at any rate its most valuable
verification. The Stagirite has been charged with trusting
too much to deductive reasoning; it now appears that, on
the contrary, he had no conception of its most important
function. Here, as everywhere, he follows not the synthetic
method of the mathematician, but the analytic method of the
naturalist. Finally, instead of combining the notions of cause
and kind, he systematically confuses them. It will be
remembered how his excellent division of causes into material,
formal, efficient, and final, was rendered nugatory by the
continued influence of Plato’s ideas. The formal cause always
tended to absorb the other three; and it is by their complete
assimilation that he attempts to harmonise the order of
demonstration with the order of existence. For the formal
cause of a phenomenon simply meant those properties which
it shared with others of the same kind, and it was by virtue of
those properties that it became a subject for general reasoning,
which was interpreted as a methodical arrangement of
concepts one within another, answering to the concentric disposition
of the cosmic spheres.
Owing to the slight importance which Aristotle attaches
to judgments as compared with concepts, he does not go
very deeply into the question, how do we obtain our premises?
He says, in remarkably emphatic language, that all knowledge
is acquired either by demonstration or by induction; or rather,
we may add, in the last resort by the latter only, since demonstration
rests on generals which are discovered inductively;
but his generals mean definitions and abstract predicates or
subjects, rather than synthetic propositions. If, however, his
attention had been called to the distinction, we cannot suppose
that he would, on his own principles, have adopted conclusions
essentially different from those of the modern experiential
school. Mr. Wallace does, indeed, claim him as a supporter
of the theory that no inference can be made from particulars
to particulars without the aid of a general proposition, and as
having refuted, by anticipation, Mill’s assertion to the contrary.
We quote the analysis which is supposed to prove this in Mr.
Wallace’s own words:—
We reason that because the war between Thebes and Phocis was
a war between neighbours and an evil, therefore the war between
Athens and Thebes, being also a war between neighbours, will in
all probability be also an evil. Thus, out of the one parallel case—the
war between Thebes and Phocis—we form the general proposition,
All wars between neighbours are evils; to this we add the
minor, the war between Athens and Thebes is a war between neighbours—and
thence arrive at the conclusion that the war between
Athens and Thebes will be likewise an evil.283
On the strength of this Mr. Wallace elsewhere observes:—
His [Aristotle’s] theory of syllogism is simply an explicit statement
of the fact that all knowledge, all thought, rests on universal
truths or general propositions—that all knowledge, whether ‘deductive’
or ‘inductive,’ is arrived at by the aid, the indispensable aid,
of general propositions. We in England have been almost charmed
into the belief that reasoning is perpetually from particular to particular,
and a ‘village matron’ and her ‘Lucy’ have been used to
express the truth for us in the concrete form adapted to our weaker
comprehension (Mill’s Logic, bk. ii. ch. 3). We shall next be told,
forsooth, that oxygen and hydrogen do not enter into the composition
of water, because our village matron ‘perpetually’ drinks it
without ‘passing through’ either element, and the analysis of the
chemist will be proved as great a fiction as the analysis of the logician.
Aristotle has supplied the links which at once upset all such superficial
analysis. He has shown that even in analogy or example, which
apparently proceeds in this way from one particular instance to
another particular instance, we are only justified in so proceeding in
so far as we have transformed the particular instance into a general
proposition.284
Now, there is this great difference between Aristotle and
Mill, that the former is only showing how reasoning from
examples can be set forth in syllogistic form, while the latter
is investigating the psychological process which underlies all
reasoning, and the real foundation on which a valid inference
rests—questions which had never presented themselves clearly
to the mind of the Greek philosopher at all. Mill argues, in
the first instance, that when any particular proposition is
deduced from a general proposition, it is proved by the same
evidence as that on which the general itself rests, namely, on
other particulars; and, so far, he is in perfect agreement with
Aristotle. He then argues that inferences from particulars to
particulars are perpetually made without passing through a
general proposition: and, to illustrate his meaning, he quotes
the example of a ‘village matron and her Lucy,’ to which Mr.
Wallace refers with a very gratuitous sneer.285
However, as we have seen, he is not above turning it
against Mill. The drift of his own illustration is not very
clear, but we suppose it implies that the matron unconsciously
frames the general proposition: My remedy is good
for all children suffering from the same disease as Lucy; and
with equal unconsciousness reasons down from this to the case
of her neighbour’s child. Now, it is quite unjustifiable to call
Mill’s analysis superficial because it leaves out of account a
hypothesis incompatible with the nominalism which Mill
professed. It is still more unjustifiable to quote against it
the authority of a philosopher who perfectly agreed with those
who disbelieve in the possibility of unconscious knowledge,286
and contemptuously rejected Plato’s opinion to the contrary.
Nor is this all. The doctrine that reasoning is from particulars
to particulars, even when it passes through general
propositions, may be rigorously deduced from Aristotle’s own
admissions. If nothing exists but particulars, and if knowledge
is of what exists, then all knowledge is of particulars.
Therefore, if the propositions entering into a chain of reasoning
are knowledge, they must deal with particulars exclusively.
And, quite apart from the later developments of Aristotle’s
philosophy, we have his express assertion, that all generals
are derived from particulars, which is absolutely incompatible
with the alleged fact, that ‘all knowledge, all thought, rests on
universal truths, on general propositions; that all knowledge,
whether “deductive” or “inductive,” is arrived at by the aid,
the indispensable aid, of general propositions.’ To Aristotle
the basis of knowledge was not ‘truths’ of any kind, but
concepts; and in the last chapter of the Posterior Analytics
he has explained how these concepts are derived from sense-perceptions
without the aid of any ‘propositions’ whatever.
We are here confronted with an important and much disputed
question, Was Aristotle an empiricist? We hold most
decidedly that he was, if by empiricist is meant, what alone
should be meant—one who believes that the mind neither
anticipates anything in the content, nor contributes anything
to the form of experience; in other words, who believes
knowledge to be the agreement of thought with things
imposed by things on thought. We have already shown,
when discussing Sir A. Grant’s view to the contrary, that
Aristotle was in no sense a transcendental idealist. The other
half of our position is proved by the chapter in the Posterior
Analytics already referred to, the language of which is primâ
facie so much in favour of our view that the burden of proof
rests on those who give it another interpretation. Among
these, the latest with whom we are acquainted is Zeller. The
eminent German historian, after asserting in former editions
of his work that Aristotle derived his first principles from the
self-contemplation of the Nous, has now, probably in deference
to the unanswerable arguments of Kampe, abandoned this
position. He still, however, assumes the existence of a rather
indefinable à priori element in the Aristotelian noology, on
the strength of the following considerations:—In the first
place, according to Aristotle, even sense-perception is not a
purely passive process, and therefore intellectual cognition
can still less be so (p. 190). But the passages quoted only
amount to this, that the passivity of a thing which is raised
from possibility to actuality differs from the passivity implied
in the destruction of its proper nature; and that the objects
of abstract thought come from within, not from without, in
the sense that they are presented by the imagination to the
reason. The pure empiricist need not deny either position.
He would freely admit that to lose one’s reason through
drunkenness or disease is a quite different sort of operation
from being impressed with a new truth; and he would also
admit that we generalise not directly from outward experience,
but from that highly-abridged and representative experience
which memory supplies. Neither process, however,
constitutes an anticipation of outward experience or an addition
to it. It is from the materialist, not from the empiricist,
that Aristotle differs. He believes that the forms under
which matter appears are separable from every particular
portion of matter, though not from all matter, in the external
world; and he believes that a complete separation between
them is effected in the single instance of self-conscious reason,
which again, in cognising any particular thing is identified with
that thing minus its matter. Zeller’s next argument is that the
cognition of ideas by the Nous is immediate, whereas the process
of generalisation from experience described by Aristotle
is extremely indirect. Here Zeller seems to misunderstand
the word ἄμεσος. Aristotle never applies it to knowledge, but
only to the objective relations of ideas with one another.
Two terms constitute an ‘immediate’ premise when they are
not connected by another term, quite irrespective of the steps
by which we come to recognise their conjunction. So with
the terms themselves. They are ‘immediate’ when they
cannot be derived from any ulterior principle; when, in short,
they are simple and uncaused. Finally, the objection that
first principles, being the most certain and necessary of any,
cannot be derived from sensible experience, which, dealing
only with material objects, must inherit the uncertainty and
contingency of matter,—is an objection, not to the empiricist
interpretation of Aristotle’s philosophy, but to empiricism
itself; and it is not allowable to explain away the plain words
of an ancient writer in order to reconcile them with assumptions
which he nowhere admits. That universality and
necessity involve an à priori cognition or an intellectual
intuition, is a modern theory unsupported by a single sentence
in Aristotle.287 We quite agree with Zeller when he goes on
to say that in Aristotle’s psychology ‘certain thoughts and
notions arise through the action of the object thought about
on the thinking mind, just as perception arises through the
action of the perceived object on the percipient’ (p. 195); but
how this differs from the purest empiricism is more than we
are able to understand.
It is remarkable that Aristotle, after repeatedly speaking
of induction as an ascent from particulars to generals, when
he comes to trace the process by which we arrive at the most
general notions of any, does not admit the possibility of such
a movement in one direction only. The universal and the
individual are, according to him, combined in our most
elementary sense-impressions, and the business of scientific
experience is to separate them. Starting from a middle
point, we work up to indivisible predicates on the one hand
and down to indivisible subjects on the other, the final apprehension
of both extremes being the office, not of science, but of
Nous. This theory is equally true and acute. The perception
of individual facts is just as difficult and just as slowly acquired
as the conception of ultimate abstractions. Moreover,
the two processes are carried on pari passu, each being only
made possible by and through the other. No true notion
can be framed without a firm grasp of the particulars from
which it is abstracted; no individual object can be studied
without analysing it into a group of common predicates, the
idiosyncrasy of which—that is, their special combination—differentiates
it from every other object. What, however, we
wish to remark is the illustration incidentally afforded by
this striking aperçu of Aristotle’s analytical method, which is
also the essentially Greek method of thought. We saw that,
for our philosopher, syllogism was not the subsumption of a
particular case under a general law, but the interpolation of a
mean between two extremes; we now see that his induction
is not the finding of a law for the particular phenomenon, but
its analysis into two elements—one universal and the other
individual—a solution of the mean into the extremes. And
the distinctive originality of his whole system was to fix two
such extremes for the universe—a self-thinking thought in
absolute self-identity at one end of the scale, and an absolutely
indeterminate matter at the other; by combining
which in various proportions he then re-constructed the
whole intermediate phenomenal reality. In studying each
particular class of facts, he follows the same method. The
genus is marked by some characteristic attribute which one
species—the prerogative species, so to speak—exhibits in
its greatest purity, while the others form a graduated scale
by variously combining this attribute with its opposite or
privation. Hence his theory, since revived by Goethe, that
the colours are so many different mixtures of light and
darkness.
It has, until lately, been customary to speak as if all that
Aristotle knew about induction was contained in a few
scattered passages where it is mentioned under that name in
the Analytics. This, no doubt, is true, if by induction we
mean simple generalisation. But if we understand by it the
philosophy of experimental evidence—the analysis of those
means by which, in the absence of direct observation, we
decide between two conflicting hypotheses—then the Topics
must be pronounced as good a discussion on the subject as
was compatible with his general theory of knowledge. For
he supposes that there are large classes of phenomena, including,
among other things, the whole range of human life, which,
not being bound by any fixed order, lie outside the scope of
scientific demonstration, although capable of being determined
with various degrees of probability; and here also what he
has in view is not the discovery of laws, but the construction
of definitions. These being a matter of opinion, could always
be attacked as well as maintained. Thus the constant conflict
and balancing of opposite forces, which we have learned
to associate with the sublunary sphere, has its logical representative
no less than the kindred ideas of uncertainty and
vicissitude. And, in connexion with this side of applied
logic, Aristotle has also to consider the requirements of those
who took part in the public debates on disputed questions,
then very common among educated Athenians, and frequently
turning on verbal definitions. Hence, while we find many
varieties of reasoning suggested, such as Reasoning by
Analogy, Disjunctive Reasoning, Hypothetical Reasoning
(though without a generalised expression for all its varieties),
and, what is most remarkable, three out of Mill’s four Experimental
Methods,288 we do not find that any interesting or
useful application is made of them. Even considered as a
handbook for debaters, the Topics is not successful. With
the practical incompetence of a mere naturalist, Aristotle has
supplied heads for arguments in such profusion and such
utter carelessness of their relative importance that no memory
could sustain the burden, except in the probably rare instances
when a lifetime was devoted to their study.
We have now concluded our survey of the first great
mental antithesis, that between reason on the one hand, and
sense and opinion on the other. The next antithesis, that
between reason and passion, will occupy us a much shorter
time. With it we pass from theory to practice, from metaphysics
and logic to moral philosophy. But, as we saw in
the preceding chapter, Aristotle is not a practical genius;
for him the supreme interest of life is still the acquisition of
knowledge. Theorising activity corresponds to the celestial
world, in which there can be neither opposition nor excess;
while passion corresponds to the sublunary sphere, where
order is only preserved by the balancing of antithetical forces;
and the moderating influence of reason, to the control exercised
by the higher over the lower system.
The passions themselves, and the means by which they
can be either excited or controlled, are described in Aristotle’s
Rhetoric with wonderful knowledge of human nature in the
abstract, but with almost no reference to the art for whose
purposes the information is ostensibly systematised; while in
the Ethics they are studied, so to speak, statically, in their
condition of permanent equilibration or disequilibration; the
virtues and vices being represented as so many different
aspects of those conditions. It is obvious that such an extremely
artificial parallelism could not be carried out without
a considerable strain and distortion of the facts involved. The
only virtue that can, with truth, be described as a form of
moderation is temperance; and even in temperance this is
accidental rather than essential. Elsewhere Aristotle deduces
the extremes from the mean rather than the mean from the
extremes; and sometimes one of the extremes is invented
for the occasion. To fit justice, confessedly the most important
virtue, into such a scheme, was obviously impracticable
without reinterpreting the idea of moderation. Instead of an
equilibrium between opposing impulses in the same person,
we have equality in the treatment of different persons; which
again resolves itself into giving them their own, without any
definite determination of what their own may be.289 It cannot
even be said that Aristotle represented either the best ethical
thought of his own age, or an indispensable stage in the
evolution of all thought. The extreme insufficiency of his
ethical theory is due to the fancied necessity of squaring it
with the requirements of his cosmological system. For no
sooner does he place himself at the popular point of view
than he deduces the particular virtues from regard to the
welfare of others, and treats them all as so many different
forms of justice.290
Aristotle has sometimes been represented as an advocate
of free-will against necessity. But the question had not really
been opened in his time. He rejected fatalism; but it had
not occurred to him that internal motives might exercise a
constraining power over action. Nor has his freedom anything
to do with the self-assertion of mind, its extrication from the
chain of physical antecedents. It is simply the element of
arbitrariness and uncertainty supposed to characterise the
region of change and opposition, as distinguished from the
higher region of undeviating regularity.
It is only in this higher region that perfect virtue can be
realised. The maintenance of a settled balance between rival
solicitations, or between the excess and defect of those impulses
which lead us to seek pleasure and avoid pain, is good
indeed, but neither the only nor the chief good. The law of
moderation does not extend to that supremely happy life
which is related to our emotional existence as the aether to
the terrestrial elements, as soul to body, as reason to sense,
as science to opinion. Here it is the steady subordination of
means to ends which imitates the insphering of the heavenly
orbs, the hierarchy of psychic faculties, and the chain of syllogistic
arguments. Of theoretic activity we cannot have too
much, and all other activities, whether public or private,
should be regarded as so much machinery for ensuring its
peaceful prosecution. Wisdom and temperance had been
absolutely identified by Socrates; they are as absolutely
held apart by Aristotle. And what we have had occasion to
observe in the other departments of thought is verified here
once more. The method of analysis and opposition, apparently
so prudent, proved, in the end, unfruitful. Notwithstanding
his paradoxes, Socrates was substantially right.
The moral regeneration of the world was destined to be
brought about, not by Dorian discipline, but by free Athenian
thought, working on practical conceptions—by the discovery
of new moral truth, or rather by the dialectic development
of old truth. And, conversely, the highest development
of theoretic activity was not attained by isolating it in
egoistic self-contemplation from the world of human needs,
but by consecrating it to their service, informing it with their
vitality, and subjecting it, in common with them, to that law of
moderation from which no energy, however godlike, is exempt.
The final antithesis of conscious life is that between the
individual and the state. In this sense, Aristotle’s Politics is
the completion of his Ethics. It is only in a well-ordered
community that moral habits can be acquired; and it is only
in such a community that the best or intellectual life can be
attained, although, properly speaking, it is not a social life.
Nevertheless, the Politics, like every other portion of Aristotle’s
system, reproduces within itself the elements of an independent
whole. To understand its internal organisation, we
must begin by disregarding Aristotle’s abortive classification
(chiefly adapted from Plato) of constitutions into three legitimate—Monarchy,
Aristocracy, and Republic; and three
illegitimate—Democracy, Oligarchy, and Tyranny. Aristotle
distinguishes them by saying that the legitimate forms are
governed with a view to the general good; the illegitimate
with a view to the interests of particular classes or persons.
But, in point of fact, as Zeller shows,291 he cannot keep up this
distinction; and we shall better understand his true idea by
substituting for it another—that between the intellectual and
the material state. The object of the one is to secure the
highest culture for a ruling caste, who are to abstain from industrial
occupations, and to be supported by the labour of a
dependent population. Such a government may be either
monarchical or aristocratic; but it must necessarily be in the
hands of a few. The object of the other is to maintain a
stable equilibrium between the opposing interests of rich and
poor—two classes practically distinguished as the few and the
many. This end is best attained where supreme power
belongs to the middle class. The deviations are represented
by oligarchy and tyranny on the one side, and by extreme
democracy on the other. Where such constitutions exist, the
best mode of preserving them is to moderate their characteristic
excess by borrowing certain institutions from the opposite
form of government, or by modifying their own institutions
in a conciliatory sense.
In the last chapter we dealt at length with the theories of
art, and especially of tragic poetry, propounded in Aristotle’s
Poetics. For the sake of formal completeness, it may be
mentioned here that those theories are adapted to the general
scheme of his systematic philosophy. The plot or plan of a
work answers to the formal or rational element in Nature, and
this is why Aristotle so immensely over-estimates its importance.
And, just as in his moral philosophy, the ethical element,
represented by character-drawing, is strictly subordinated
to it. The centre of equilibrium is, however, not supplied
by virtue, but by exact imitation of Nature, so that the
characters must not deviate very far from mediocrity in the
direction either of heroism or of wickedness.
Notwithstanding the radical error of Aristotle’s philosophy—the
false abstraction and isolation of the intellectual from
the material sphere in Nature and in human life—it may furnish
a useful corrective to the much falser philosophy insinuated,
if not inculcated, by some moralists of our own age and
country. Taken altogether, the teaching of these writers
seems to be that the industry which addresses itself to the
satisfaction of our material wants is much more meritorious
than the artistic work which gives us direct aesthetic enjoyment,
or the literary work which stimulates and gratifies our
intellectual cravings; while within the artistic sphere fidelity
of portraiture is preferred to the creation of ideal beauty;
and within the intellectual sphere, mere observation of facts
is set above the theorising power by which facts are unified
and explained. Some of the school to whom we allude are
great enemies of materialism; but teaching like theirs is
materialism of the worst description. Consistently carried
out, it would first reduce Europe to the level of China, and then
reduce the whole human race to the level of bees or beavers.
They forget that when we were all comfortably clothed,
housed, and fed, our true lives would have only just begun.
The choice would then remain between some new refinement
of animal appetite and the theorising activity which, according
to Aristotle, is the absolute end, every other activity
being only a means for its attainment. There is not, indeed,
such a fundamental distinction as he supposed, for activities
of every order are connected by a continual reciprocity of
services; but this only amounts to saying that the highest
knowledge is a means to every other end no less than an end
in itself. Aristotle is also fully justified in urging the necessity
of leisure as a condition of intellectual progress. We
may add that it is a leisure which is amply earned, for without
it industrial production could not be maintained at its present
height. Nor should the same standard of perfection be
imposed on spiritual as on material labour. The latter could
not be carried on at all unless success, and not failure, were
the rule. It is otherwise in the ideal sphere. There the
proportions are necessarily reversed. We must be content if
out of a thousand guesses and trials one should contribute
something to the immortal heritage of truth. Yet we may
hope that this will not always be so, that the great discoveries
and creations wrought out through the waste of innumerable
lives are not only the expiation of all error and suffering in
the past, but are also the pledge of a future when such sacrifices
shall no longer be required.
The two elements of error and achievement are so intimately
blended and mutually conditioned in the philosophy
which we have been reviewing, that to decide on their respective
importance is impossible without first deciding on a still
larger question—the value of systematic thought as such, and
apart from its actual content. For Aristotle was perhaps the
greatest master of systematisation that ever lived. The
framework and language of science are still, to a great extent,
what he made them; and it remains to be seen whether they
will ever be completely remodelled. Yet even this gift has
not been an unmixed benefit, for it was long used in the
service of false doctrines, and it still induces critics to read
into the Aristotelian forms truths which they do not really
contain. Let us conclude by observing that of all the ancients,
or even of all thinkers before the eighteenth century, there is
none to whom the methods and results of modern science
could so easily be explained. While finding that they
reversed his own most cherished convictions on every point,
he would still be prepared by his logical studies to appreciate
the evidence on which they rest, and by his ardent love of
truth to accept them without reserve. Most of all would he
welcome our astronomy and our biology with wonder and
delight, while viewing the development of modern machinery
with much more qualified admiration, and the progress of
democracy perhaps with suspicious fear. He who thought
that the mind and body of an artisan were alike debased by
the exercise of some simple handicraft under the pure bright
sky of Greece, what would he have said to the effect wrought
on human beings by the noisome, grinding, sunless, soulless
drudgery of our factories and mines! How profoundly unfitted
would he have deemed its victims to influence those political
issues with which the interests of science are every day
becoming more vitally connected! Yet slowly, perhaps, and
unwillingly, he might be brought to perceive that our industry
has been the indispensable basis of our knowledge, as supplying
both the material means and the moral ends of its
cultivation. He might also learn that there is an even closer
relationship between the two: that while the supporters of
privilege are leagued for the maintenance of superstition, the
workers, and those who advocate their claims to political
equality, are leagued for its restraint and overthrow. And if
he still shrank back from the heat and smoke and turmoil
amid which the genius of our age stands, like another Heracleitus,
in feverish excitement, by the steam-furnace whence
its powers of revolutionary transmutation are derived, we
too might reapply the words of the old Ephesian prophet,
bidding him enter boldly, for here also there are gods.
END OF THE FIRST VOLUME.
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Obvious typographical errors have been silently corrected. Other
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Footnote 143: Zeller, 678-8. This appears erroneous.
The book cover image was created by the transcriber and is placed in the
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