Change in the political condition of
Greece during the life of Plato.
The life of Plato extends from 427-347 B.C.
He was born in the fourth year of the Peloponnesian war, and he
died at the age of 80, about the time when Olynthus was taken by
the Macedonian Philip. The last years of his life thus witnessed a
melancholy breach in the integrity of the Hellenic world, and even
exhibited data from which a far-sighted Hellenic politician might
have anticipated something like the coming subjugation, realised
afterwards by the victory of Philip at Chæroneia. But during
the first half of Plato’s life, no such anticipations seemed even
within the limits of possibility. The forces of Hellas, though
discordant among themselves, were superabundant as to defensive
efficacy, and were disposed rather to aggression against foreign
enemies, especially against a country then so little formidable as
Macedonia. It was under this contemplation of Hellas self-acting
and self-sufficing — an aggregate of cities, each a political
unit, yet held together by strong ties of race, language,
religion, and common feelings of various kinds — that the mind of
Plato was both formed and matured.
In appreciating, as far as our scanty evidence allows, the
circumstances which determined his intellectual and speculative
character, I shall be compelled to touch briefly upon the various
philosophical theories which were propounded anterior to Sokrates
— as well as to repeat some matters already brought to view in the
sixteenth, sixty-seventh, and sixty-eighth chapters of my History
of Greece.
Early Greek mind, satisfied with the
belief in polytheistic personal agents as the real producing
causes of phenomena.
To us, as to Herodotus, in his day, the philosophical speculation
of the Greeks begins with the theology and cosmology of Homer and
Hesiod. The series of divine persons and attributes, and
generations presented by these poets, and especially the Theogony
of Hesiod, supplied at one time full satisfaction to the curiosity
of the Greeks respecting the past history and present agencies of
the world around them. In the emphatic censure bestowed by
Herakleitus on the poets and philosophers who preceded him, as
having much knowledge but no sense — he includes Hesiod, as well
as Pythagoras, Xenophanes, and Hekatæus: upon Homer and
Archilochus he is still more severe, declaring that they ought to
be banished from the public festivals and scourged.1
The sentiment of curiosity as it then existed was only secondary
and derivative, arising out of some of the strong primary or
personal sentiments — fear or hope, antipathy or sympathy, —
impression of present weakness, — unsatisfied appetites and
longings, — wonder and awe under the presence of the
terror-striking phenomena of nature, &c. Under this state of
the mind, when problems suggested themselves for solution, the
answers afforded by Polytheism gave more satisfaction than could
have been afforded by any other hypothesis. Among the indefinite
multitude of invisible, personal, quasi-human agents, with
different attributes and dispositions, some one could be found to
account for every perplexing phenomenon. The question asked was,
not What are the antecedent conditions or causes of rain, thunder,
or earthquakes, but Who rains and thunders? Who produces
earthquakes?2 The Hesiodic Greek was satisfied when
informed that it was Zeus or Poseidon. To be told of physical
agencies would have appeared to him not merely
unsatisfactory, but absurd, ridiculous, and impious. It was the
task of a poet like Hesiod to clothe this general polytheistic
sentiment in suitable details: to describe the various Gods,
Goddesses, Demigods, and other quasi-human agents, with their
characteristic attributes, with illustrative adventures, and with
sufficient relations of sympathy and subordination among each
other, to connect them in men’s imaginations as members of the
same brotherhood. Okeanus, Gæa, Uranus, Helios,
Selênê, — Zeus, Poseidon, Hades — Apollo and Artemis,
Dionysus and Aphroditê — these and many other divine
personal agents, were invoked as the producing and sustaining
forces in nature, the past history of which was contained in their
filiations or contests. Anterior to all of them, the primordial
matter or person, was Chaos.
Belief in such agency continued among
the general public, even after the various sects of philosophy
had arisen.
Hesiod represents the point of view ancient and popular (to use
Aristotle’s expression3) among the
Greeks, from whence all their philosophical speculation took its
departure; and which continued throughout their history, to
underlie all the philosophical speculations, as the faith of the
ordinary public who neither frequented the schools nor conversed
with philosophers. While Aristophanes, speaking in the name of
this popular faith, denounces and derides Sokrates as a searcher,
alike foolish and irreligious, after astronomical and physical
causes — Sokrates himself not only denies the truth of the
allegation, but adopts as his own the sentiment which dictated it;
proclaiming Anaxagoras and others to be culpable for prying into
mysteries which the Gods intentionally kept hidden.4
The repugnance felt by a numerous public, against scientific
explanation — as eliminating the divine agents and substituting in
their place irrational causes,5 — was a
permanent fact of which philosophers were always obliged to take
account, and
which modified the tone of their speculations without being
powerful enough to repress them.
Thales, the first Greek who propounded
the hypothesis of physical agency in place of personal. Water,
the primordial substance, or ἀρχή.
Even in the sixth century B.C., when
the habit of composing in prose was first introduced, Pherekydes
and Akusilaus still continued in their prose the theogony, or the
mythical cosmogony, of Hesiod and the other old Poets: while
Epimenides and the Orphic poets put forth different theogonies,
blended with mystical dogmas. It was, however, in the same
century, and in the first half of it, that Thales of Miletus
(620-560 B.C.), set the example of a
new vein of thought. Instead of the Homeric Okeanus, father of all
things, Thales assumed the material substance, Water, as the
primordial matter and the universal substratum of everything in
nature. By various transmutations, all other substances were
generated from water; all of them, when destroyed, returned into
water. Like the old poets, Thales conceived the surface of the
earth to be flat and round; but he did not, like them, regard it
as stretching down to the depths of Tartarus: he supposed it to be
flat and shallow, floating on the immensity of the watery expanse
or Ocean.6 This is the main feature of the
Thaletian hypothesis, about which, however, its author seems to
have left no writing. Aristotle says little about Thales, and that
little in a tone of so much doubt,7 that we can
hardly confide in the opinions and discoveries ascribed to him by
others.8
Anaximander — laid down as ἀρχή the
Infinite or indeterminate — generation of the elements out of
it, by evolution of latent fundamental contraries — astronomical
and geological doctrines.
The next of the Ionic philosophers, and the first who published his
opinions in writing, was Anaximander, of Miletus, the countryman
and younger contemporary of Thales (570-520 B.C.).
He too searched for an Ἀρχή, a primordial Something or principle,
self-existent and comprehending in its own nature a generative,
motive, or transmutative force. Not thinking that water, or any
other known and definite substance fulfilled these conditions, he
adopted as the foundation of his hypothesis a substance which he
called the Infinite or Indeterminate. Under this name he conceived
Body simply, without any positive or determinate properties, yet
including the fundamental contraries, Hot, Cold, Moist, Dry,
&c., in a potential or latent state, including farther a
self-changing and self-developing force,9 and being
moreover immortal and indestructible.10 By this
inherent force, and by the evolution of one or more of these
dormant contrary qualities, were generated the various definite
substances of nature — Air, Fire, Water, &c. But every
determinate substance thus generated was, after a certain time,
destroyed and resolved again into the Indeterminate mass. “From
thence all substances proceed, and into this they relapse: each in
its turn thus making atonement to the others, and suffering the
penalty of injustice.”11
Anaximander conceived separate existence (determinate and
particular existence, apart from the indeterminate and universal)
as an unjust privilege, not to be tolerated except for a time,
and requiring atonement even for that. As this process of
alternate generation and destruction was unceasing, so nothing
less than an Infinite could supply material for it. Earth, Water,
Air, Fire, having been generated, the two former, being cold and
heavy, remained at the bottom, while the two latter ascended. Fire
formed the exterior circle, encompassing the air like bark round a
tree: this peripheral fire was broken up and aggregated into
separate masses, composing the sun, moon, and stars. The sphere of
the fixed stars was nearest to the earth: that of the moon next
above it: that of the sun highest of all. The sun and moon were
circular bodies twenty-eight times larger than the earth: but the
visible part of them was only an opening in the centre, through
which12 the fire or light behind was seen.
All these spheres revolved round the earth, which was at first
semi-fluid or mud, but became dry and solid through the heat of
the sun. It was in shape like the section of a cylinder, with a
depth equal to one-third of its breadth or horizontal surface, on
which men and animals live. It was in the centre of the Kosmos; it
remained stationary because of its equal distance from all parts
of the outer revolving spheres; there was no cause determining it
to move upward rather than downward or sideways, therefore it
remained still.13 Its exhalations nourished the fire in
the peripheral regions of the Kosmos. Animals were produced from
the primitive muddy fluid of the earth: first, fishes and other
lower animals — next, in process of time man, when circumstances
permitted his development.14 We
learn farther respecting the doctrines of Anaximander, that he
proposed physical explanations of thunder, lightning, and other
meteorological phenomena:15 memorable
as the earliest attempt of speculation in that department, at a
time when such events inspired the strongest religious awe, and
were regarded as the most especial manifestations of purposes of
the Gods. He is said also to have been the first who tried to
represent the surface and divisions of the earth on a brazen
plate, the earliest rudiment of a map or chart.16
Anaximenes — adopted Air as ἀρχή —
rise of substances out of it, by condensation and rarefaction.
The third physical philosopher produced by Miletus, seemingly
before the time of her terrible disasters suffered from the
Persians after the Ionic revolt between 500-494 B.C., was Anaximenes, who struck out a
third hypothesis. He assumed, as the primordial substance, and as
the source of all generation or transmutation, Air, eternal in
duration, infinite in extent. He thus returned to the principle of
the Thaletian theory, selecting for his beginning a known
substance, though not the same substance as Thales. To explain how
generation of new products was possible (as Anaximander had tried
to explain by his theory of evolution of latent contraries),
Anaximenes adverted to the facts of condensation and rarefaction,
which he connected respectively with cold and heat.17
The Infinite Air, possessing and exercising an inherent generative
and developing power, perpetually in motion, passing from dense to
rare or from rare to dense, became in its utmost rarefaction, Fire
and Æther; when passing through successive stages of
increased condensation it became first cloud, next water, then
earth, and, lastly, in its utmost density,
stone.18 Surrounding, embracing, and pervading
the Kosmos, it also embodied and carried with it a vital
principle, which animals obtained from it by inspiration, and
which they lost as soon as they ceased to breathe.19
Anaximenes included in his treatise (which was written in a clear
Ionic dialect) many speculations on astronomy and meteorology,
differing widely from those of Anaximander. He conceived the Earth
as a broad, flat, round plate, resting on the air.20
Earth, Sun, and Moon were in his view condensed air, the Sun
acquiring heat by the extreme and incessant velocity with which he
moved. The Heaven was not an entire hollow sphere encompassing the
Earth below as well as above, but a hemisphere covering the Earth
above, and revolving laterally round it like a cap round the head.21
The general principle of cosmogony, involved in the hypothesis of
these three Milesians — one primordial substance or Something
endued with motive and transmutative force, so as to generate all
the variety of products, each successive and transient, which our
senses witness — was taken up with more or less modification by
others, especially by Diogenes of Apollonia, of whom I shall speak
presently. But there were three other men who struck out different
veins of thought — Pythagoras, Xenophanes, and Herakleitus: the
two former seemingly contemporary with Anaximenes (550-490 B.C.), the latter somewhat later.
Pythagoras — his life and career —
Pythagorean brotherhood, great political influence which it
acquired among the Greco-Italian cities — incurred great enmity
and was violently put down.
Of Pythagoras I have spoken at some length in the thirty-seventh
chapter of my History of Greece. Speculative originality was only
one among many remarkable features in his character. He was an
inquisitive traveller, a religious reformer or innovator, and the
founder of a powerful and active brotherhood, partly ascetic,
partly political, which stands without parallel in Grecian
history. The immortality of the soul, with its transmigration
(metempsychosis) after death into other bodies, either of
men or of other animals — the universal kindred thus recognised
between men and other animals, and the prohibition which he
founded thereupon against the use of animals for food or sacrifice
— are among his most remarkable doctrines: said to have been
borrowed (together with various ceremonial observances) from the
Egyptians.22 After acquiring much celebrity in his
native island of Samos and throughout Ionia, Pythagoras emigrated
(seemingly about 530 B.C.) to Kroton
and Metapontum in Lower Italy, where the Pythagorean brotherhood
gradually acquired great political ascendancy: and from whence it
even extended itself in like manner over the neighbouring
Greco-Italian cities. At length it excited so much political
antipathy among the body of the citizens,23 that its
rule was violently put down, and its members dispersed about 509 B.C. Pythagoras died at Metapontum.
The Pythagoreans continue as a recluse
sect, without political power.
Though thus stripped of power, however, the Pythagoreans still
maintained themselves for several generations as a social,
religious, and philosophical brotherhood. They continued and
extended the vein of speculation first opened by the founder
himself. So little of proclaimed individuality was there among
them, that Aristotle, in criticising their doctrine, alludes to
them usually under the collective name Pythagoreans. Epicharmus,
in his comedies at Syracuse (470 B.C.)
gave occasional utterance to various doctrines of the sect; but
the earliest of them who is known to have composed a book, was
Philolaus,24 the contemporary of Sokrates. Most of
the opinions ascribed to the Pythagoreans originated probably
among the successors of Pythagoras; but the basis and principle
upon which they proceed seems undoubtedly his.
Doctrine of the Pythagoreans — Number
the Essence of Things.
The problem of physical philosophy, as then conceived, was
to find some primordial and fundamental nature, by and out of
which the sensible universe was built up and produced; something
which co-existed always underlying it, supplying fresh matter and
force for generation of successive products. The hypotheses of
Thales, Anaximander, and Anaximenes, to solve this problem, have
been already noticed: Pythagoras solved it by saying, That the
essence of things consisted in Number. By this he did not mean
simply that all things were numerable, or that number belonged to
them as a predicate. Numbers were not merely predicates
inseparable from subjects, but subjects in themselves: substances
or magnitudes, endowed with active force, and establishing the
fundamental essences or types according to which things were
constituted. About water,25 air, or
fire, Pythagoras said nothing.26 He
conceived that sensible phenomena had greater resemblance to
numbers than to any one of these substrata assigned by the Ionic
philosophers. Number was (in his doctrine) the self-existent
reality — the fundamental material and in-dwelling force pervading
the universe. Numbers were not separate from things27
(like the Platonic Ideas), but fundamenta of things —
their essences or determining principles: they were moreover
conceived as having magnitude and active force.28
In the movements of the celestial bodies, in works of human art,
in musical harmony — measure and number are the producing and
directing agencies. According to the Pythagorean Philolaus, “the
Dekad, the full and perfect number, was of supreme and universal
efficacy as the guide and principle of life, both to the
Kosmos and to man. The nature of number was imperative and
lawgiving, affording the only solution of all that was perplexing
or unknown; without number all would be indeterminate and
unknowable.”29
The Monas — ἀρχή, or principle of
Number — geometrical conception of number — symbolical
attributes of the first ten numbers, especially of the Dekad.
The first principle or beginning of Number, was the One or Monas
— which the Pythagoreans conceived as including both the two
fundamental contraries — the Determining and the Indeterminate.30
All particular numbers, and through them all things, were
compounded from the harmonious junction and admixture of these two
fundamental contraries.31 All
numbers being either odd or even, the odd numbers were considered
as analogous to the Determining, the even numbers to the
Indeterminate. In One or the Monad, the Odd and Even were supposed
to be both contained, not yet separated: Two was the first
indeterminate even number; Three, the first odd and the first
determinate number, because it included beginning, middle, and
end. The sum of the first four numbers — One,
Two, Three, Four = Ten (1 + 2 + 3 + 4) was the most perfect number
of all.32 To these numbers, one, two, three,
four, were understood as corresponding the fundamental conceptions
of Geometry — Point, Line, Plane, Solid. Five represented
colour and visible appearance: Six, the phenomenon of
Life: Seven, Health, Light, Intelligence, &c.: Eight,
Love or Friendship.33 Man,
Horse, Justice and Injustice, had their representative numbers:
that corresponding to Justice was a square number, as giving equal
for equal.34
Pythagorean Kosmos and Astronomy —
geometrical and harmonic laws guiding the movements of the
cosmical bodies.
The Pythagoreans conceived the Kosmos, or the universe, as one
single system, generated out of numbers.35 Of this
system the central point — the determining or limiting One — was
first in order of time, and in order of philosophical conception.
By the determining influence of this central constituted One,
portions of the surrounding Infinite were successively attracted
and brought into system: numbers, geometrical figures, solid
substances, were generated. But as the Kosmos thus constituted was
composed of numbers, there could be no continuum: each numerical
unit was distinct and separated from the rest by a portion of
vacant space, which was imbibed, by a sort of inhalation, from the
infinite space or spirit without.36
The central point was fire, called by the Pythagoreans the Hearth
of the Universe (like the public hearth or perpetual fire
maintained in the prytaneum of a Grecian city), or the watch-tower
of Zeus. Around it revolved, from West to East, ten divine bodies,
with unequal velocities, but in symmetrical movement or regular
dance.37 Outermost was the circle of the fixed
stars, called by the Pythagoreans Olympus, and composed of fire
like the centre. Within this came successively, — with orbits more
and more approximating to the centre, — the five planets, Saturn,
Jupiter, Mars, Venus, Mercury: next, the Sun, the Moon, and the
Earth. Lastly, between the Earth and the central fire, an
hypothetical body, called the Antichthon or Counter-Earth, was
imagined for the purpose of making up a total represented by the
sacred number Ten, the symbol of perfection and totality. The
Antichthon was analogous to a separated half of the Earth;
simultaneous with the Earth in its revolutions, and corresponding
with it on the opposite side of the central fire.
The inhabited portion of the Earth was supposed to be that which
was turned away from the central fire and towards the Sun, from
which it received light. But the Sun itself was not self-luminous:
it was conceived as a glassy disk, receiving and concentrating
light from the central fire, and reflecting it upon the Earth, so
long as the two were on the same side of the central fire. The
Earth revolved, in an orbit obliquely intersecting that of the
Sun, and in twenty-four hours, round the central fire, always
turning the same side towards that fire. The alternation of day
and night was occasioned by the Earth being during a part of such
revolution on the same side of the central fire with the Sun, and
thus receiving light reflected from him: and during the remaining
part of her revolution on the side opposite to him, so that she
received no light at all from him. The Earth, with the Antichthon,
made this revolution in one day: the Moon, in
one month:38 the Sun, with the planets, Mercury
and Venus, in one year: the planets, Mars, Jupiter, and Saturn, in
longer periods respectively, according to their distances from the
centre: lastly, the outermost circle of the fixed stars (the
Olympus, or the Aplanes), in some unknown period of very long
duration.39
Music of the Spheres.
The revolutions of such grand bodies could not take place, in the
opinion of the Pythagoreans, without producing a loud and powerful
sound; and as their distances from the central fire were supposed
to be arranged in musical ratios,40 so the
result of all these separate sounds was full and perfect harmony.
To the objection — Why were not these sounds heard by us? — they
replied, that we had heard them constantly and without
intermission from the hour of our birth; hence they had become
imperceptible by habit.41
Pythagorean list of fundamental
Contraries — Ten opposing pairs.
Ten was, in the opinion of the Pythagoreans, the perfection
and consummation of number. The numbers from One to Ten were all
that they recognised as primary, original, generative. Numbers
greater than ten were compounds and derivatives from the decad.
They employed this perfect number not only as a basis on which to
erect a bold astronomical hypothesis, but also as a sum total for
their list of contraries. Many Hellenic philosophers42
recognised pairs of opposing attributes as pervading nature, and
as the fundamental categories to which the actual varieties of the
sensible world might be reduced. While others laid down Hot and
Cold, Wet and Dry, as the fundamental contraries, the Pythagoreans
adopted a list of ten pairs. 1. Limit and Unlimited; 2. Odd and
Even; 3. One and Many; 4. Right and Left; 5. Male and Female; 6.
Rest and Motion; 7. Straight and Curve; 8. Light and Darkness; 9.
Good and Evil; 10. Square and Oblong.43 Of these
ten pairs, five belong to arithmetic or to geometry, one to
mechanics, one to physics, and three to anthropology or ethics.
Good and Evil, Regularity and Irregularity, were recognised as
alike primordial and indestructible.44
The arithmetical and geometrical view of nature, to which such
exclusive supremacy is here given by the Pythagoreans, is one of
the most interesting features of Grecian philosophy. They were the
earliest cultivators of mathematical science,45
and are to be recognised as having paved the way for Euclid and
Archimedes, notwithstanding the symbolical and mystical fancies
with which they so largely perverted what are now regarded as the
clearest and most rigorous processes of the human intellect. The
important theorem which forms the forty-seventh Proposition of
Euclid’s first book, is affirmed to have been discovered by
Pythagoras himself: but how much progress was made by him and his
followers in the legitimate province of arithmetic and geometry,
as well as in the applications of these sciences to harmonics,46
which they seem to have diligently cultivated, we have not
sufficient information to determine with certainty.
Eleatic philosophy — Xenophanes.
Contemporary with Pythagoras, and like him an emigrant from Ionia
to Italy, was Xenophanes of Kolophon. He settled at the
Phokæan colony of Elea, on the Gulf of Poseidonia; his life
was very long, but his period of eminence appears to belong (as
far as we can make out amidst conflicting testimony) to the last
thirty years of the sixth century B.C.
(530-500 B.C.). He was thus
contemporary with Anaximander and Anaximenes, as well as with
Pythagoras, the last of whom he may have personally known.47
He composed, and recited in person, poems — epic, elegiac, and
iambic — of which a very few fragments remain.
His censures upon the received
Theogony and religious rites.
Xenophanes takes his point of departure, not from Thales or
Anaximander, but from the same ancient theogonies which they had
forsaken. But he follows a very different road. The most prominent
feature in his poems (so far as they remain), is the directness
and asperity with which he attacks the received opinions
respecting the Gods — and the poets Hesiod and Homer, the popular
exponents of those opinions. Xenophanes not only condemns these
poets for having ascribed to the Gods discreditable exploits, but
even calls in question the existence of the Gods, and ridicules
the anthropomorphic conception which pervaded the Hellenic faith.
“If horses or lions could paint, they would delineate their Gods
in form like themselves. The Ethiopians conceive their Gods as
black, the Thracians conceive theirs as fair and with reddish
hair.”48 Dissatisfied with much of the customary
worship and festivals, Xenophanes repudiated divination
altogether, and condemned the extravagant respect shown to victors
in Olympic contests,49 not less
than the lugubrious ceremonies in honour of Leukothea. He
discountenanced all Theogony, or assertion of the birth of Gods,
as impious, and as inconsistent with the prominent attribute of
immortality ascribed to them.50 He
maintained that there was but one God, identical with, or a
personification of, the whole Uranus. “The whole Kosmos, or the
whole God, sees, hears, and thinks.” The divine nature (he said)
did not admit of the conception of separate persons one governing
the other, or of want and imperfection in any way.51
His doctrine of Pankosmism, or
Pantheism — The whole Kosmos is Ens Unum or God — Ἓν καὶ Πᾶν.
Non-Ens inadmissible.
Though Xenophanes thus appears (like Pythagoras) mainly as a
religious dogmatist, yet theogony and cosmogony were so intimately
connected in the sixth century B.C.,
that he at the same time struck out a new philosophical theory.
His negation of theogony was tantamount to a negation of
cosmogony. In substituting one God for many, he set aside all
distinct agencies in the universe, to recognise only one agent,
single, all-pervading, indivisible. He repudiated all genesis of a
new reality, all actual existence of parts, succession, change,
beginning, end, etc., in reference to the universe, as well as in
reference to God. “Wherever I turned my mind (he exclaimed)
everything resolved itself into One and the same: all things
existing came back always and everywhere into one similar and
permanent nature.”52 The
fundamental tenet of Xenophanes was partly religious, partly
philosophical, Pantheism, or Pankosmism: looking upon the universe
as one real all-comprehensive Ens, which he would not call either
finite or infinite, either in motion or at rest.53
Non-Ens he pronounced to be an absurdity — an inadmissible and
unmeaning phrase.
Scepticism of Xenophanes — complaint
of philosophy as unsatisfactory.
It was thus from Xenophanes that the doctrine of Pankosmism
obtained introduction into Greek philosophy, recognising nothing
real except the universe as an indivisible and unchangeable whole.
Such a creed was altogether at variance with common perception,
which apprehends the universe as a plurality of substances,
distinguishable, divisible, changeable, &c. And Xenophanes
could not represent his One and All, which excluded all change, to
be the substratum out of which phenomenal variety was generated —
as Water, Air, the Infinite, had been represented by the Ionic
philosophers. The sense of this contradiction, without knowing how
to resolve it, appears to have occasioned the mournful complaints
of irremediable doubt and uncertainty, preserved as fragments from
his poems. “No man (he exclaims) knows clearly about the Gods or
the universe: even if he speak what is perfectly true, he himself
does not know it to be true: all is matter of opinion.”54
Nevertheless while denying all real variety or division in the
universe, Xenophanes did not deny the variety of human perceptions
and beliefs. But he allowed them as facts belonging to man, not to
the universe — as subjective or relative, not as objective or
absolute. He even promulgated opinions of his own respecting many
of the physical and cosmological subjects treated by the Ionic
philosophers.
His conjectures on physics and
astronomy.
Without attempting to define the figure of the Earth, he
considered it to be of vast extent and of infinite depth;55
including, in its interior cavities, prodigious reservoirs both of
fire and water. He thought that it had at one time been covered
with water, in proof of which he noticed the
numerous shells found inland and on mountain tops, together with
the prints of various fish which he had observed in the quarries
of Syracuse, in the island of Paros, and elsewhere. From these
facts he inferred that the earth had once been covered with water,
and even that it would again be so covered at some future time, to
the destruction of animal and human life.56 He
supposed that the sun, moon, and stars were condensations of
vapours exhaled from the Earth, collected into clouds, and
alternately inflamed and extinguished.57
Parmenides continues the doctrine of
Xenophanes — Ens Parmenideum, self-existent, eternal,
unchangeable, extended, — Non-Ens, an unmeaning phrase.
Parmenides, of Elea, followed up and gave celebrity to the
Xenophanean hypothesis in a poem, of which the striking exordium
is yet preserved. The two veins of thought, which Xenophanes had
recognised and lamented his inability to reconcile, were
proclaimed by Parmenides as a sort of inherent contradiction in
the human mind — Reason or Cogitation declaring one way, Sense
(together with the remembrances and comparisons of sense)
suggesting a faith altogether opposite. Dropping that controversy
with the popular religion which had been raised by Xenophanes,
Parmenides spoke of many different Gods or Goddesses, and insisted
on the universe as one, without regarding it as one God. He
distinguished Truth from matter of Opinion.58
Truth was knowable only by pure mental contemplation or
cogitation, the object of which was Ens or Being, the Real or
Absolute: here the Cogitans and the Cogitatum were identical, one
and the same.59 Parmenides conceived Ens not simply
as existent, but as self-existent, without beginning
or end,60 as extended, continuous, indivisible,
and unchangeable. The Ens Parmenideum comprised the two notions of
Extension and Duration:61 it was
something Enduring and Extended; Extension including both space,
and matter so far forth as filling space. Neither the contrary of
Ens (Non-Ens), nor anything intermediate between Ens and Non-Ens,
could be conceived, or named, or reasoned about. Ens comprehended
all that was Real, without beginning or end, without parts or
difference, without motion or change, perfect and uniform like a
well-turned sphere.62
He recognises a region of opinion,
phenomenal and relative, apart from Ens.
In this subject Ens, with its few predicates, chiefly negative,
consisted all that Parmenides called Truth. Everything else
belonged to the region of Opinion, which embraced all that was
phenomenal, relative, and transient: all that involved a reference
to man’s senses, apprehension, and appreciation, all the
indefinite diversity of observed facts and inferences. Plurality,
succession, change, motion, generation, destruction, division of
parts, &c., belonged to this category. Parmenides did not deny
that he and other men had perceptions and beliefs corresponding to
these terms, but he denied their application to the Ens or the
self-existent. We are conscious of succession, but the
self-existent has no succession: we perceive change of colour and
other sensible qualities, and change of place or motion, but Ens
neither changes nor moves. We talk of things generated or
destroyed — things coming into being or going out of being — but
this phrase can have no application to the self-existent Ens,
which is always and cannot properly be called either past
or future.63 Nothing is really
generated or destroyed, but only in appearance to us, or
relatively to our apprehension.64 In like
manner we perceive plurality of objects, and divide objects into
parts. But Ens is essentially One, and cannot be divided.65
Though you may divide a piece of matter you cannot divide the
extension of which that matter forms part: you cannot (to use the
expression of Hobbes66) pull
asunder the first mile from the second, or the first hour from the
second. The milestone, or the striking of the clock, serve as
marks to assist you in making a mental division, and in
considering or describing one hour and one mile apart from the
next. This, however, is your own act, relative to yourself: there
is no real division of extension into miles, or of duration into
hours. You may consider the same space or time as one or as many,
according to your convenience: as one hour or as sixty minutes, as
one mile or eight furlongs. But all this is a process of your own
mind and thoughts; another man may divide the same total in a way
different from you. Your division noway modifies the reality
without you, whatever that may be — the Extended and Enduring Ens
— which remains still a continuous one, undivided and unchanged.
Parmenidean ontology stands
completely apart from phenomenology.
The Ens of Parmenides thus coincided mainly with that which
(since Kant) has been called the Noumenon — the Thing in itself —
the Absolute; or rather with that which, by a frequent illusion,
passes for the absolute — no notice being taken of the cogitant
and believing apart from mind, as if cogitation and belief, cogitata
and credita, would be had without it. By Ens was
understood
the remnant in his mind, after leaving out all that abstraction,
as far as it had then been carried, could leave out. It was the
minimum indispensable to the continuance of thought; you cannot
think (Parmenides says) without thinking of Something, and that
Something Extended and Enduring. Though he and others talk of this
Something as an Absolute (i.e. apart from or independent of
his own thinking mind), yet he also uses some juster language (τὸ
γὰρ αὐτὸ νοεῖν ἔστιν τε καὶ εἶναι), showing that it is really
relative: that if the Cogitans implies a Cogitatum, the Cogitatum
also implies no less its correlative Cogitans: and that though we
may divide the two in words, we cannot divide them in fact. It is
to be remarked that Parmenides distinguishes the Enduring or
Continuous from the Transient or Successive, Duration from
Succession (both of which are included in the meaning of the word
Time), and that he considers Duration alone as belonging to Ens or
the Absolute — to the region of Truth — setting it in opposition
or antithesis to Succession, which he treats as relative and
phenomenal. We have thus (with the Eleates) the first appearance
of Ontology, the science of Being or Ens, in Grecian philosophy.
Ens is everything, and everything is Ens. In the view of
Parmenides, Ontology is not merely narrow, but incapable of
enlargement or application; we shall find Plato and others trying
to expand it into numerous imposing generalities.67
Parmenidean phenomenology — relative
and variable.
Apart from Ontology, Parmenides reckons all as belonging to human
opinions. These were derived from the observations of sense (which
he especially excludes from Ontology) with the comparisons,
inferences, hypothesis, &c., founded thereupon: the phenomena
of Nature generally.68 He does
not attempt (as Plato and Aristotle do after him) to make Ontology
serve as a principle or beginning for anything beyond itself,69
or as a premiss from which the knowledge of nature is to be
deduced. He treats the two — Ontology and Phenomenology, to employ
an Hegelian word — as radically disparate, and incapable of any
legitimate union. Ens was essentially one and enduring: Nature was
essentially multiform, successive, ever changing and moving
relative to the observer, and different to observers at different
times and places. Parmenides approached the study of Nature from
its own starting point, the same as had been
adopted by the Ionic philosophers — the data of sense, or certain
agencies selected among them, and vaguely applied to explain the
rest. Here he felt that he relinquished the full conviction,
inseparable from his intellectual consciousness, with which he
announced his few absolute truths respecting Ens and Non-Ens, and
that he entered upon a process of mingled observation and
conjecture, where there was great room for diversity of views
between man and man.
Parmenides recognises no truth, but
more or less probability, in phenomenal explanations. — His
physical and astronomical conjectures.
Yet though thus passing from Truth to Opinions, from full
certainty to comparative and irremediable uncertainty,70
Parmenides does not consider all opinions as equally true or
equally untrue. He announces an opinion of his own — what he
thinks most probable or least improbable — respecting the
structure and constitution of the Kosmos, and he announces it
without the least reference to his own doctrines about Ens. He
promises information respecting Earth, Water, Air, and the
heavenly bodies, and how they work, and how they came to be what
they are.71 He recognises two elementary
principles or beginnings, one contrary to the other, but both of
them positive — Light, comprehending the Hot, the Light, and the
Rare — Darkness, comprehending the Cold, the Heavy, and the Dense.72
These two elements, each endued with active and vital properties,
were brought into junction and commixture by the
influence of a Dea Genitalis analogous to Aphroditê,73
with her first-born son Eros, a personage borrowed from the
Hesiodic Theogony. From hence sprang the other active forces of
nature, personified under various names, and the various
concentric circles or spheres of the Kosmos. Of those spheres, the
outer-most was a solid wall of fire — “flammantia mœnia mundi” —
next under this the Æther, distributed into several circles
of fire unequally bright and pure — then the circle called the
Milky Way, which he regarded as composed of light or fire combined
with denser materials — then the Sun and Moon, which were
condensations of fire from the Milky Way — lastly, the Earth,
which he placed in the centre of the Kosmos.74
He is said to have been the first who pronounced the earth to be
spherical, and even distributed it into two or five zones.75
He regarded it as immovable, in consequence of its exact position
in the centre. He considered the stars to be fed by exhalation
from the Earth. Midway between the Earth and the outer flaming
circle, he supposed that there dwelt a Goddess — Justice or
Necessity — who regulated all the movements of the Kosmos, and
maintained harmony between its different parts. He represented the
human
race as having been brought into existence by the power of the
sun,76 and he seems to have gone into some
detail respecting animal procreation, especially in reference to
the birth of male and female offspring. He supposed that the human
mind, as well as the human body, was compounded of a mixture of
the two elemental influences, diffused throughout all Nature: that
like was perceived and known by like: that thought and sensation
were alike dependent upon the body, and upon the proportions of
its elemental composition: that a certain limited knowledge was
possessed by every object in Nature, animate or inanimate.77
Before we pass from Parmenides to his pupil and successor Zeno,
who developed the negative and dialectic side of the Eleatic
doctrine, it will be convenient to notice various other theories
of the same century: first among them that of Herakleitus, who
forms as it were the contrast and antithesis to Xenophanes and
Parmenides.
Herakleitus — his obscure style,
impressive metaphors, confident and contemptuous dogmatism.
Herakleitus of Ephesus, known throughout antiquity by the
denomination of the Obscure, comes certainly after Pythagoras and
Xenophanes and apparently before Parmenides. Of the two first
he made special mention, in one of the sentences, alike brief and
contemptuous which have been preserved from his lost
treatise:—“Much learning does not teach reason: otherwise it would
have taught Hesiod and Pythagoras, Xenophanes and Hekatæus.”
In another passage Herakleitus spoke of the “extensive knowledge,
cleverness, and wicked arts” of Pythagoras. He declared that Homer
as well as Archilochus deserved to be scourged and expelled from
the public festivals.78 His
thoughts were all embodied in one single treatise, which he is
said to have deposited in the temple of the Ephesian Artemis. It
was composed in a style most perplexing and difficult to
understand, full of metaphor, symbolical illustration, and
antithesis:
but this very circumstance imparted to it an air of poetical
impressiveness and oracular profundity.79 It
exercised a powerful influence on the speculative minds of Greece,
both in the Platonic age, and subsequently: the Stoics especially
both commented on it largely (though with many dissentient
opinions among the commentators), and borrowed with partial
modifications much of its doctrine.80
Doctrine of Herakleitus — perpetual
process of generation and destruction — everything flows,
nothing stands — transition of the elements into each other,
backwards and forwards.
The expositors followed by Lucretius and Cicero conceived
Herakleitus as having proclaimed Fire to be the universal and
all-pervading element of nature;81 as Thales
had recognised water, and Anaximenes air. This interpretation was
countenanced by some striking passages of Herakleitus: but when we
put together all that remains from him, it appears that his main
doctrine was not physical, but metaphysical or ontological: that
the want of adequate general terms induced him to clothe it in a
multitude of symbolical illustrations, among which fire was only
one, though the most prominent and most significant.82
Xenophanes and the Eleates had recognised, as the only objective
reality, One extended Substance or absolute Ens, perpetual,
infinite, indeterminate, incapable of change or modification. They
denied the objective reality of motion, change, generation, and
destruction — considering all these to be purely relative and
phenomenal. Herakleitus on the contrary denied
everything in the nature of a permanent and perpetual substratum:
he laid down nothing as permanent and perpetual except the process
of change — the alternate sequence of generation and destruction,
without beginning or end — generation and destruction being in
fact coincident or identical, two sides of the same process, since
the generation of one particular state was the destruction of its
antecedent contrary. All reality consisted in the succession and
transition, the coming and going, of these finite and particular
states: what he conceived as the infinite and universal, was the
continuous process of transition from one finite state to the next
— the perpetual work of destruction and generation combined, which
terminated one finite state in order to make room for a new and
contrary state.
Variety of metaphors employed by
Herakleitus, signifying the same general doctrine.
This endless process of transition, or ever-repeated act of
generation and destruction in one, was represented by Herakleitus
under a variety of metaphors and symbols — fire consuming its own
fuel — a stream of water always flowing — opposite currents
meeting and combating each other — the way from above downwards,
and the way from below upwards, one and the same — war, contest,
penal destiny or retributive justice, the law or decree of Zeus
realising each finite condition of things and then destroying its
own reality to make place for its contrary and successor.
Particulars are successively generated and destroyed, none of them
ever arriving at permanent existence:83 the
universal process of generation and destruction alone continues.
There is no Esse, but a perpetual Fieri: a transition from Esse to
Non-Esse, from Non-Esse to Esse, with an intermediate temporary
halt between them: a ceaseless meeting and confluence of the
stream of generation with the opposite stream of destruction: a
rapid and instant succession, or rather coincidence and
coalescence,
of contraries. Living and dead, waking and sleeping, light and
dark, come into one or come round into each other: everything
twists round into its contrary: everything both is and is not.84
Nothing permanent except the law of
process and implication of contraries — the transmutative force.
Fixity of particulars is an illusion for most part, so far as it
exists, it is a sin against the order of Nature.
The universal law, destiny, or divine working (according to
Herakleitus), consists in this incessant process of generation and
destruction, this alternation of contraries. To carry out such law
fully, each of the particular manifestations ought to appear and
pass away instantaneously — to have no duration of its own, but to
be supplanted by its contrary at once. And this happens to a great
degree, even in cases where it does not appear to happen: the
river appears unchanged, though the water which we touched a short
time ago has flowed away:85 we and
all around us are in rapid movement, though we appear stationary:
the apparent sameness and fixity is thus a delusion. But
Herakleitus does not seem to have thought that his absolute
universal force was omnipotent, or accurately carried out in
respect to all particulars. Some positive and particular
manifestations, when once brought to pass, had a certain measure
of fixity, maintaining themselves for more or less time before
they were destroyed. There was a difference between one particular
and another, in this respect of comparative durability: one was
more durable, another less.86 But
according to the universal law or destiny, each particular ought
simply to make its appearance, then to be supplanted and
re-absorbed; so that the time during which it continued on the
scene was, as it were, an unjust usurpation, obtained by
encroaching on the equal right of the next
comer, and by suspending the negative agency of the universal.
Hence arises an antithesis or hostility between the universal law
or process on one side, and the persistence of particular states
on the other. The universal law or process is generative and
destructive, positive and negative, both in one: but the
particular realities in which it manifests itself are all
positive, each succeeding to its antecedent, and each striving to
maintain itself against the negativity or destructive interference
of the universal process. Each particular reality represented rest
and fixity: each held ground as long as it could against the
pressure of the cosmical force, essentially moving, destroying,
and renovating. Herakleitus condemns such pretensions of
particular states to separate stability, inasmuch as it keeps back
the legitimate action of the universal force, in the work of
destruction and renovation.
Illustrations by which Herakleitus
symbolized his perpetual force, destroying and generating.
The theory of Herakleitus thus recognised no permanent
substratum, or Ens, either material or immaterial — no category
either of substance or quality — but only a ceaseless principle of
movement or change, generation and destruction, position and
negation, immediately succeeding, or coinciding with each other.87
It is this principle or everlasting force which he denotes under
so many illustrative phrases — “the common (τὸ ξυνον),
the universal, the all-comprehensive (τὸ περιέχον), the governing,
the divine, the name or reason of Zeus, fire, the current of
opposites, strife or war, destiny, justice, equitable measure,
Time or the Succeeding,” &c. The most emphatic way in which
this theory could be presented was, as embodied, in the
coincidence or co-affirmation of contraries. Many of the dicta
cited and preserved out of Herakleitus are of this paradoxical
tenor.88 Other dicta simply affirm perpetual
flow, change, or transition, without express allusion to
contraries: which latter, however, though not expressed, must be
understood, since change was conceived as a change from one
contrary to the other.89 In the
Herakleitean idea, contrary forces come simultaneously into
action: destruction and generation always take effect together:
there is no negative without a positive, nor positive without a
negative.90
Water — intermediate between Fire
(Air) and Earth.
Such was the metaphysical or logical foundation of the philosophy
of Herakleitus: the idea of an eternal process of change,
manifesting itself in the perpetual destruction and renovation of
particular realities, but having itself no reality apart from
these particulars, and existing only in them as an immanent
principle or condition. This principle, from the want of
appropriate abstract terms, he expressed in a variety of
symbolical and metaphorical phrases, among
which Fire stood prominent.91 But
though Fire was thus often used to denote the principle or ideal
process itself, the same word was also employed to denote that one
of the elements which formed the most immediate manifestation of
the principle. In this latter sense, Fire was the first stage of
incipient reality: the second stage was water, the third earth.
This progression, fire, water, earth, was in Herakleitean language
“the road downwards,” which was the same as “the road upwards,”
from earth to water and again to fire. The death of fire was its
transition into water: that of water was its transition partly
into earth, partly into flame. As fire was the type of extreme
mobility, perpetual generation and destruction — so earth was the
type of fixed and stationary existence, resisting movement or
change as much as possible.92 Water was
intermediate between the two.
Sun and stars — not solid bodies but
meteoric aggregations dissipated and renewed — Eclipses —
ἐκπύρωσις, or destructions of the Kosmos by fire.
Herakleitus conceived the sun and stars, not as solid bodies, but
as meteoric aggregations perpetually dissipated and perpetually
renewed or fed, by exhalation upward from the water and earth. The
sun became extinguished and rekindled in suitable measure and
proportion, under the watch of the Erinnyes, the satellites of
Justice. These celestial lights were contained in troughs, the
open side of which was turned towards our vision. In case of
eclipses the trough was for the time reversed, so that the dark
side was turned towards us; and the different phases of the moon
were occasioned by the gradual turning round of the trough in
which
her light was contained. Of the phenomena of thunder and lightning
also, Herakleitus offered some explanation, referring them to
aggregations and conflagrations of the clouds, and violent
currents of winds.93 Another
hypothesis was often ascribed to Herakleitus, and was really
embraced by several of the Stoics in later times — that there
would come a time when all existing things would be destroyed by
fire (ἐκπύρωσις), and afterwards again brought into reality in a
fresh series of changes. But this hypothesis appears to have been
conceived by him metaphysically rather than physically. Fire was
not intended to designate the physical process of combustion, but
was a symbolical phrase for the universal process; the perpetual
agency of conjoint destruction and renovation, manifesting itself
in the putting forth and re-absorption of particulars, and having
no other reality except as immanent in these particulars.94
The determinate Kosmos of the present moment is perpetually
destroyed, passing into fire or the indeterminate: it is
perpetually renovated or passes out of fire into water, earth —
out of the indeterminate, into the various determinate
modifications. At the same time, though Herakleitus seems to have
mainly employed these symbols for the purpose of signifying or
typifying a metaphysical conception, yet there was no clear
apprehension, even in his own mind, of this generality, apart from
all symbols: so that the illustration came to count as a physical
fact by itself, and has been so understood by many.95
The line between what he meant as the ideal or metaphysical
process, and the elementary or physical process, is not easy to
draw, in the fragments which now remain.
His doctrines respecting the human
soul and human knowledge. All wisdom resided in the Universal
Wisdom — individual Reason is worthless.
The like blending of metaphysics and physics — of the abstract
and the concrete and sensible — is to be found in the statements
remaining from Herakleitus respecting the human soul and human
knowledge. The human soul, according to him, was an effluence or
outlying portion of the Universal96 — the
fire — the perpetual movement or life of things. As such, its
nature was to be ever in movement: but it was imprisoned and
obstructed by the body, which represented the stationary, the
fixed, the particular — that which resisted the universal force of
change. So long as a man lived, his soul or mind, though thus
confined, participated more or less in the universal movement: but
when he died, his body ceased to participate in it, and became
therefore vile, “fit only to be cast out like dung”. Every man,
individually considered, was irrational;97 reason
belonged only to the universal or the whole, with which the mind
of each living man was in conjunction, renewing itself by
perpetual absorption, inspiration or inhalation, vaporous
transition, impressions through the senses and the pores, &c.
During sleep, since all the media of communication, except only
those through respiration, were suspended, the mind became
stupefied and destitute of memory. Like coals when the fire is
withdrawn, it lost its heat and tended towards extinction.98
On waking, it recovered its full communication with the great
source of intelligence without — the universal all-comprehensive
process of life and movement. Still, though this was
the one and only source of intelligence open to all waking men,
the greater number of men could neither discern it for themselves,
nor understand it without difficulty even when pointed out to
them. Though awake, they were not less unconscious or forgetful of
the process going on around them, than if they had been asleep.99
The eyes and ears of men with barbarous or stupid souls, gave them
false information.100 They
went wrong by following their own individual impression or
judgment: they lived as if reason or intelligence belonged to each
man individually. But the only way to attain truth was, to abjure
all separate reason, and to follow the common or universal reason.
Each man’s mind must become identified and familiar with that
common process which directed and transformed the whole: in so far
as he did this, he attained truth: whenever he followed any
private or separate judgment of his own, he fell into error.101 The highest pitch of this severance
of the individual judgment was seen during sleep, at which time
each man left the common world to retire into a world of his own.102
By Universal Reason he did not mean
the Reason of most men as it is, but as it ought to be.
By this denunciation of the mischief of private judgment,
Herakleitus did not mean to say that a man ought to think like his
neighbours or like the public. In his view the public were wrong,
collectively as well as individually. The universal reason
to which he made appeal, was not the reason of most men as it
actually is but that which, in his theory, ought to be their
reason:103 that which formed the perpetual and
governing process throughout all nature, though most men neither
recognised nor attended to it, but turned away from it in
different directions equally wrong. No man was truly possessed of
reason, unless his individual mind understood the general scheme
of the universe, and moved in full sympathy with its perpetual
movement and alternation or unity of contraries.104 The universal process contained in
itself a sum-total of particular contraries which were
successively produced and destroyed: to know the universal was to
know these contraries in one, and to recognise them as transient,
but correlative and inseparable, manifestations, each implying the
other — not as having each a separate reality and each excluding
its contrary.105 In so far as a man’s mind maintained
its kindred nature and perpetual conjoint movement with the
universal, he acquired true knowledge; but the individualising
influences arising from the body usually overpowered this kindred
with the universal, and obstructed the continuity of this
movement, so that most persons became plunged in error and
illusion.
Herakleitus at the opposite pole from
Parmenides.
The absolute of Herakleitus stands thus at the opposite pole as
compared with that of Parmenides: it is absolute movement, change,
generation and destruction — negation of all substance and
stability,106 temporary and unbecoming resistance
of each successive particular to the destroying and renewing
current of the universal. The Real, on this theory, was a
generalisation, not of substances, but of facts, events, changes,
revolutions, destructions, generations, &c., determined by a
law of justice or necessity which endured, and which alone
endured, for ever. Herakleitus had many followers, who adopted his
doctrine wholly or partially, and who gave to it developments
which he had not adverted to, perhaps might not have acknowledged.107 It was found an apt theme by those
who, taking a religious or poetical view of the universe, dwelt
upon the transitory and contemptible value of particular
existences, and extolled the grandeur or power of the universal.
It suggested many doubts and debates respecting the foundations of
logical evidence, and the distinction of truth from falsehood;
which debates will come to be noticed hereafter, when we deal with
the dialectical age of Plato and Aristotle.
Empedokles — his doctrine of the four
elements, and two moving or restraining forces.
After Herakleitus, and seemingly at the same time with Parmenides,
we arrive at Empedokles (about 500-430 B. C.)
and his memorable doctrine of the Four Elements. This philosopher,
a Sicilian of Agrigentum, and a distinguished as well as
popular-minded citizen, expounded his views in poems, of which
Lucretius108 speaks with high admiration, but of
which few fragments are preserved. He agreed with Parmenides, and
dissented from Herakleitus and the Ionic philosophers, in
rejecting all real generation and destruction.109 That which existed had not been
generated and could not be destroyed. Empedokles explained what
that was, which men mistook for generation and destruction. There
existed four distinct elements — Earth, Water, Air, and Fire —
eternal, inexhaustible, simple, homogeneous, equal, and
co-ordinate with each other. Besides these four substances, there
also existed two moving forces, one contrary to the other — Love
or Friendship, which brought the elements into conjunction —
Enmity or Contest, which separated them. Here were alternate and
conflicting agencies, either bringing together different portions
of the elements to form a new product, or breaking up the product
thus formed and separating the constituent elements. Sometimes the
Many were combined into One; sometimes the One was decomposed into
Many. Generation was simply this combination of elements already
existing separately — not the calling into existence of anything
new: destruction was in like manner the dissolution of some
compound, not the termination of any existent simple substance.
The four simple substances or elements (which Empedokles sometimes
calls by names of the popular Deities — Zeus, Hêrê,
Aidoneus, &c.), were the roots or foundations of everything.110
Construction of the Kosmos from these
elements and forces — action and counter action of love and
enmity. The Kosmos alternately made and unmade.
From the four elements — acted upon by these two forces, abstractions
or mythical personifications — Empedokles showed how the Kosmos
was constructed. He supposed both forces to be perpetually
operative, but not always with equal efficacy: sometimes the one
was predominant, sometimes the other, sometimes there was
equilibrium between them. Things accordingly pass through a
perpetual and ever-renewed cycle. The complete preponderance of
Love brings alternately all the elements into close and compact
unity, Enmity being for the time eliminated. Presently the action
of the latter recommences, and a period ensues in which Love and
Enmity are simultaneously operative; until at length Enmity
becomes the temporary master, and all union is for the time
dissolved. But this condition of things does not last. Love again
becomes active, so that partial and increasing combination of the
elements is produced, and another period commences — the
simultaneous action of the two forces, which ends in renewed
empire of Love, compact union of the elements, and temporary
exclusion of Enmity.111
Empedoklean predestined cycle of
things — complete empire of Love — Sphærus — Empire of
Enmity — disengagement or separation of the elements — astronomy
and meteorology.
This is the Empedoklean cycle of things,112 divine or predestined, without
beginning or end: perpetual substitution of new for old compounds
— constancy only in the general principle of combination and
dissolution. The Kosmos which Empedokles undertakes to explain,
takes its commencement from the period of complete empire of Love,
or compact and undisturbed union of all the elements. This he
conceives and divinises under the name of Sphærus — as One
sphere, harmonious, uniform, and universal, having no motion,
admitting no parts or separate existences within it, exhibiting no
one of the four elements distinctly, “instabilis tellus, innabilis
unda” — a sort of chaos.113 At the
time prescribed by Fate or Necessity, the action of Enmity
recommenced, penetrating gradually through the interior of
Sphærus, “agitating the members of the God one after
another,”114 disjoining the parts from each
other, and distending the compact ball into a vast porous mass.
This mass, under the simultaneous and conflicting influences of
Love and Enmity, became distributed partly into homogeneous
portions, where each of the four elements was accumulated by
itself — partly into compounds or individual substances, where two
or more elements were found in conjunction. Like had an appetite
for Like — Air for Air, Fire for Fire, and so forth: and a farther
extension of this appetite brought about the mixture of different
elements in harmonious compounds. First, the Air disengaged
itself, and occupied a position surrounding the central mass of
Earth and Water: next, the Fire also broke forth, and placed
itself externally to the Air, immediately in contact with the
outermost crystalline sphere, formed of condensed and frozen air,
which formed the wall encompassing the Kosmos. A remnant of Fire
and Air still remained embodied in the Earth, but the great mass
of both so distributed themselves, that the former occupied most
part of one hemisphere, the latter most part of the other.115 The rapid and uniform rotation of
the Kosmos, caused by the exterior Fire, compressed
the interior elements, squeezed the water out of the earth like
perspiration from the living body, and thus formed the sea. The
same rotation caused the earth to remain unmoved, by
counterbalancing and resisting its downward pressure or gravity.116 In the course of the rotation, the
light hemisphere of Fire, and the comparatively dark hemisphere of
Air, alternately came above the horizon: hence the interchange of
day and night. Empedokles (like the Pythagoreans) supposed the sun
to be not self-luminous, but to be a glassy or crystalline body
which collected and reflected the light from the hemisphere of
Fire. He regarded the fixed stars as fastened to the exterior
crystalline sphere, and revolving along with it, but the planets
as moving free and detached from any sphere.117 He supposed the alternations of
winter and summer to arise from a change in the proportions of Air
and Fire in the atmospheric regions: winter was caused by an
increase of the Air, both in volume and density, so as to drive
back the exterior Fire to a greater distance from the Earth, and
thus to produce a diminution of heat and light: summer was
restored when the Fire, in its turn increasing, extruded a portion
of the Air, approached nearer to the Earth, and imparted to the
latter more heat and light.118
Empedokles farther supposed (and his contemporaries, Anaxagoras
and Diogenes, held the same opinion) that the Earth was round and
flat at top and bottom, like a drum or tambourine: that its
surface had been originally horizontal, in reference to the
rotation of the Kosmos around it, but that it had afterwards
tilted down to the south and upward towards the north, so as to
lie aslant instead of horizontal. Hence he explained the fact that
the north pole of the heavens now appeared obliquely elevated
above the horizon.119
Formation of the Earth, of Gods, men,
animals, and plants.
From astronomy and meteorology Empedokles120 proceeded to describe the Earth,
its tenants, and its furniture; how men were first produced, and
how put together. All were produced by the Earth: being thrown up
under the stimulus of Fire still remaining within it. In its
earliest manifestations, and before the influence of Discord had
been sufficiently neutralized, the Earth gave birth to plants
only, being as yet incompetent to produce animals.121 After a certain time she gradually
acquired power to produce animals, first imperfectly and
piecemeal, trunks without limbs and limbs without trunks; next,
discordant and monstrous combinations, which did not last, such as
creatures half man half ox; lastly, combinations with parts suited
to each other, organizations perfect and durable, men, horses,
&c., which continued and propagated.122 Among
these productions were not only plants, birds, fishes, and men,
but also the “long-lived Gods”.123 All
compounds were formed by intermixture of the four elements, in
different proportions, more or less harmonious.124 These elements remained unchanged:
no one of them was transformed into another. But the small
particles of each flowed into the pores of the others, and the
combination was more or less intimate, according as the structure
of these pores was more or less adapted to receive them. So
intimate did the mixture of these fine particles become, when the
effluvia of one and the pores of another were in symmetry, that
the constituent ingredients, like colours compounded together by
the painter,125 could not be discerned or
handled separately. Empedokles rarely assigned any specific ratio
in which he supposed the four elements to enter into each distinct
compound, except in the case of flesh and blood, which were formed
of all the four in equal portions; and of bones, which he affirmed
to be composed of one-fourth earth, one-fourth water, and the
other half fire. He insisted merely on the general fact of such
combinations, as explaining what passed for generation of new
substances without pointing out any reason to determine one ratio
of combination rather than another, and without ascribing to each
compound a distinct ratio of its own. This omission in his system
is much animadverted on by Aristotle.
Physiology of Empedokles —
Procreation — Respiration — movement of the blood.
Empedokles farther laid down many doctrines respecting
physiology. He dwelt on the procreation of men and animals,
entered upon many details respecting gestation and the fœtus, and
even tried to explain what it was that determined the birth of
male or female offspring. About respiration, alimentation, and
sensation, he also proposed theories: his explanation of
respiration remains in one of the fragments. He supposed that man
breathed, partly through the nose, mouth, and lungs, but partly
also through the whole surface of the body, by the pores wherewith
it was pierced, and by the internal vessels connected with those
pores. Those internal vessels were connected with the blood
vessels, and the portion of them near the surface was alternately
filled with blood or emptied of blood, by the flow outwards from
the centre or the ebb inwards towards the centre. Such was the
movement which Empedokles considered as constantly belonging to
the blood: alternately a projection outwards from the centre and a
recession backwards towards the centre. When the blood thus
receded, the extremities of the vessels were left
empty, and the air from without entered: when the outward tide of
blood returned, the air which had thus entered was expelled.126 Empedokles conceived this outward
tide of blood to be occasioned by the effort of the internal fire
to escape and join its analogous element without.127
Doctrine of effluvia and pores —
explanation of perceptions — Intercommunication of the elements
with the sentient subject — like acting upon like.
The doctrine of pores and effluvia, which formed so conspicuous
an item in the physics of Empedokles, was applied by him to
explain sensation. He maintained the general doctrine (which
Parmenides had advanced before him, and which Plato retained after
him), that sensation was produced by like acting upon like:
Herakleitus before him, and Anaxagoras after him, held that it was
produced by unlike acting upon unlike. Empedokles tried (what
Parmenides had not tried) to apply his doctrine to the various
senses separately.128 Man was
composed of the same four elements as the universe around him: and
since like always tended towards like, so by each of the four
elements within himself, he perceived and knew the like element
without. Effluvia from all bodies entered his pores, wherever they
found a suitable channel: hence he perceived and knew earth by
earth, water by water, and so forth.129
Empedokles, assuming perception and knowledge to be produced by
such intercommunication of the four elements, believed that not
man and
animals only, but plants and other substances besides, perceived
and knew in the same way. Everything possessed a certain measure
of knowledge, though less in degree, than man, who was a more
compound structure.130
Perception and knowledge was more developed in different animals
in proportion as their elementary composition was more mixed and
varied. The blood, as the most compound portion of the whole body,
was the principal seat of intelligence.131
Sense of vision.
In regard to vision, Empedokles supposed that it was operated
mainly by the fire or light within the eye, though aided by the
light without. The interior of the eye was of fire and water, the
exterior coat was a thin layer of earth and air. Colours were
brought to the eye as effluvia from objects, and became
apprehended as sensations by passing into the alternate pores or
ducts of fire and water: white colour was fitted to (or in
symmetry with) the pores of fire, black colour with those of
water.132 Some animals had the proportions of
fire and water in their eyes better adjusted, or more conveniently
located, than others: in some, the fire was in excess, or too much
on the outside, so as to obstruct the pores or ducts of water: in
others, water was in excess, and fire in defect. The latter were
the
animals which saw better by day than by night, a great force of
external light being required to help out the deficiency of light
within: the former class of animals saw better by night, because,
when there was little light without, the watery ducts were less
completely obstructed — or left more free to receive the influx of
black colour suited to them.133
Senses of hearing, smell, taste.
In regard to hearing, Empedokles said that the ear was like a
bell or trumpet set in motion by the air without; through which
motion the solid parts were brought into shock against the air
flowing in, and caused the sensation of sound within.134 Smell was, in his view, an adjunct
of the respiratory process: persons of acute smell were those who
had the strongest breathing: olfactory effluvia came from many
bodies, and especially from such as were light and thin.
Respecting taste and touch, he gave no further explanation than
his general doctrine of effluvia and pores: he seems to have
thought that such interpenetration was intelligible by itself,
since here was immediate and actual contact. Generally, in respect
to all the senses, he laid it down that pleasure ensued when the
matter which flows in was not merely fitted in point of structure
to penetrate the interior pores or ducts (which was the condition
of all sensation), but also harmonious with them in respect to
elementary mixture.135
Empedokles declared that justice
absolutely forbade the killing of anything that had life. His
belief in the metempsychosis. Sufferings of life are an
expiation for wrong done during an antecedent life. Pretensions
to magic power.
Empedokles held various opinions in common with the Pythagoreans
and the brotherhood of the Orphic mysteries — especially that of
the metempsychosis. He represented himself as having passed
through prior states of existence, as a boy, a girl, a shrub, a
bird, and a fish. He proclaims it as an obligation of justice,
absolute and universal, not to kill anything that had life: he
denounces as an abomination the sacrificing of or eating of an
animal, in whom perhaps might dwell the soul of a
deceased friend or brother.136 His
religious faith, however, and his opinions about Gods,
Dæmons, and the human soul, stood apart (mostly in a
different poem) from his doctrines on kosmology and physiology. In
common with many Pythagoreans, he laid great stress on the
existence of Dæmons (of intermediate order and power between
Gods and men), some of whom had been expelled from the Gods in
consequence of their crimes, and were condemned to pass a long
period of exile, as souls embodied in various men or animals. He
laments the misery of the human soul, in himself as well as in
others, condemned to this long period of expiatory degradation,
before they could regain the society of the Gods.137 In one of his remaining fragments,
he announces himself almost as a God upon earth, and professes his
willingness as well as ability to impart to a favoured pupil the
most wonderful gifts — powers to excite or abate the winds, to
bring about rain or dry weather, to raise men from the dead.138 He was in fact a man of universal
pretensions; not merely an expositor of nature, but a rhetorician,
poet, physician, prophet, and conjurer. Gorgias the rhetor had
been personally present at his magical ceremonies.139
Complaint of Empedokles on the
impossibility of finding out truth.
None of the remaining fragments of Empedokles are more remarkable
than a few in which he deplores the impossibility of finding out
any great or comprehensive truth, amidst the distraction and the
sufferings of our short life. Every man took a different road,
confiding only in his own accidental experience or
particular impressions; but no man could obtain or communicate
satisfaction about the whole.140
Theory of Anaxagoras — denied
generation and destruction — recognises only mixture and
severance of pre-existing kinds of matter.
Anaxagoras of Klazomenæ, a friend of the Athenian Perikles,
and contemporary of Empedokles, was a man of far simpler and less
ambitious character: devoted to physical contemplation and
geometry, without any of those mystical pretentions common among
the Pythagoreans. His doctrines were set forth in prose, and in
the Ionic dialect.141 His
theory, like all those of his age, was all-comprehensive in its
purpose, starting from a supposed beginning, and shewing how
heaven, earth, and the inhabitants of earth, had come into those
appearances which were exhibited to sense. He agreed with
Empedokles in departing from the point of view of Thales and other
Ionic theorists, who had supposed one primordial matter, out of
which, by various transformations, other sensible things were
generated — and into which, when destroyed, they were again
resolved. Like Empedokles, and like Parmenides previously, he
declared that generation, understood in this sense, was a false
and impossible notion: that no existing thing could have been
generated, or could be destroyed, or could undergo real
transformation into any other thing different from what it was.142 Existing things were what they were,
possessing their several inherent properties: there could be no
generation except the putting together of these things in various
compounds, nor any destruction except the breaking up of such
compounds, nor any transformation except the substitution of one
compound for another.
Homœomeries — small particles of
diverse kinds of matter, all mixed together.
But Anaxagoras did not accept the Empedoklean four elements as
the sum total of first substances. He reckoned all the different
sorts of matter as original and primæval existences:
he supposed them all to lie ready made, in portions of all sizes,
whereof there was no greatest and no least.143 Particles of the same sort he called
Homœomeries: the aggregates of which formed bodies of like parts;
wherein the parts were like each other and like the whole. Flesh,
bone, blood, fire,144 earth,
water, gold, &c., were aggregations of particles mostly
similar, in which each particle was not less flesh, bone, and
blood, than the whole mass.
But while Anaxagoras held that each of these Homœomeries145 was a special sort of matter with
its own properties, and each of them unlike every other: he held
farther the peculiar doctrine, that no one of them could have an
existence apart from the rest. Everything was mixed with
everything: each included in itself all the others: not one of
them could be obtained pure and unmixed. This was true of any
portion however small. The visible and tangible bodies around us
affected our senses, and received their denominations according to
that one peculiar matter of which they possessed a decided
preponderance and prominence. But each of them included in itself
all the other matters, real and inseparable, although latent.146
First condition of things — all the
primordial varieties of matter were huddled together in
confusion. Nous, or Reason, distinct from all of them,
supervened and acted upon this confused mass, setting the
constituent particles in movement.
In the beginning (said Anaxagoras) all things (all sorts of
matter) were together, in one mass or mixture. Infinitely numerous
and infinite in diversity of magnitude, they were so packed and
confounded together that no one could be distinguished from the
rest: no definite figure, or colour, or other property, could
manifest itself. Nothing was distinguishable except the infinite
mass of Air and Æther (Fire), which surrounded the mixed
mass and kept it together.147 Thus
all things continued for an infinite time in a state of rest and
nullity. The fundamental contraries — wet, dry, hot, cold, light,
dark, dense, rare, — in their intimate contact neutralised each
other.148 Upon this inert mass supervened the
agency of Nous or Mind. The characteristic virtue of mind was,
that it alone was completely distinct, peculiar, pure in itself,
unmixed with anything else: thus marked out from all other things
which were indissolubly mingled with each other. Having no
communion of nature with other things, it was noway acted upon by
them, but was its own master or autocratic, and was of very great
force. It was moreover the thinnest and purest of all things;
possessing complete knowledge respecting all other things. It was
like to itself throughout — the greater manifestations of mind
similar to the less.149
Movement of rotation in the mass
initiated by Nous on a small scale, but gradually extending
itself. Like particles congregate together — distinguishable
aggregates are formed.
But though other things could not act upon mind, mind could act
upon them. It first originated movement in the quiescent
mass. The movement impressed was that of rotation, which first
began on a small scale, then gradually extended itself around,
becoming more efficacious as it extended, and still continuing to
extend itself around more and more. Through the prodigious
velocity of this rotation, a separation was effected of those
things which had been hitherto undistinguishably huddled together.150 Dense was detached from rare, cold
from hot, dark from light, dry from wet.151 The
Homœomeric particles congregated together, each to its like; so
that bodies were formed — definite and distinguishable aggregates,
possessing such a preponderance of some one ingredient as to bring
it into clear manifestation.152 But
while the decomposition of the multifarious mass was thus carried
far enough to produce distinct bodies, each of them specialised,
knowable, and regular — still the separation can never be
complete, nor can any one thing be “cut away as with a hatchet”
from the rest. Each thing, great or small, must always contain in
itself a proportion or trace, latent if not manifest, of
everything else.153 Nothing
except mind can be thoroughly pure and unmixed.
Nothing (except Νοῦς) can be entirely
pure or unmixed, but other things may be comparatively pure.
Flesh, Bone, &c. are purer than Air or Earth.
Nevertheless other things approximate in different degrees to
purity, according as they possess a more or less decided
preponderance of some few ingredients over the remaining
multitude. Thus flesh, bone, and other similar portions of the
animal organism, were (according to Anaxagoras) more nearly pure
(with one constituent more thoroughly preponderant and all other
coexistent natures more thoroughly subordinate and latent)
than the four Empedoklean elements, Air, Fire, Earth, &c.;
which were compounds wherein many of the numerous ingredients
present were equally effective, so that the manifestations were
more confused and complicated. In this way the four Empedoklean
elements formed a vast seed-magazine, out of which many distinct
developments might take place, of ingredients all pre-existing
within it. Air and Fire appeared to generate many new products,
while flesh and bone did not.154 Amidst
all these changes, however, the infinite total mass remained the
same, neither increased nor diminished.155
Theory of Anaxagoras compared with
that of Empedokles.
In comparing the theory of Anaxagoras with that of Empedokles, we
perceive that both of them denied not only the generation of new
matter out of nothing (in which denial all
the ancient physical philosophers concurred), but also the
transformation of one form of matter into others, which had been
affirmed by Thales and others. Both of them laid down as a basis
the existence of matter in a variety of primordial forms. They
maintained that what others called generation or transformation,
was only a combination or separation of these pre-existing
materials, in great diversity of ratios. Of such primordial forms
of matter Empedokles recognised only four, the so-called Elements;
each simple and radically distinct from the others, and capable of
existing apart from them, though capable also of being combined
with them. Anaxagoras recognised primordial forms of matter in
indefinite number, with an infinite or indefinite stock of
particles of each; but no one form of matter (except Nous) capable
of being entirely severed from the remainder. In the constitution
of every individual body in nature, particles of all the different
forms were combined; but some one or a few forms were preponderant
and manifest, all the others overlaid and latent. Herein consisted
the difference between one body and another. The Homœomeric body
was one in which a confluence of like particles had taken place so
numerous and powerful, as to submerge all the coexistent particles
of other sorts. The majority thus passed for the whole, the
various minorities not being allowed to manifest themselves, yet
not for that reason ceasing to exist: a type of human society as
usually constituted, wherein some one vein of sentiment, ethical,
æsthetical, religious, political, &c., acquires such
omnipotence as to impose silence on dissentients, who are supposed
not to exist because they cannot proclaim themselves without ruin.
Suggested partly by the phenomena of
animal nutrition.
The hypothesis of multifarious forms of matter, latent yet still
real and recoverable, appears to have been suggested to Anaxagoras
mainly by the phenomena of animal nutrition.156 The bread and meat on which we feed
nourishes all the different parts of our body — blood, flesh,
bones, ligaments, veins, trachea, hair, &c. The nutriment must
contain in itself different matters homogeneous with all these
tissues and organs; though we cannot see such matters, our reason
tells us that they must be there. This physiological divination is
interesting from its general approximation towards the results of
modern analysis.
Chaos common to both Empedokles and
Anaxagoras: moving agency, different in one from the other
theory.
Both Empedokles and Anaxagoras begin their constructive process
from a state of stagnation and confusion both tantamount to Chaos;
which is not so much active discord (as Ovid paints it), as rest
and nullity arising from the equilibrium of opposite forces. The
chaos is in fact almost a reproduction of the Infinite of
Anaximander.157 But Anaxagoras as well as Empedokles
enlarged his hypothesis by introducing (what had not occurred or
did not seem necessary to Anaximander) a special and separate
agency for eliciting positive movement and development out of the
negative and stationary Chaos. The Nous or Mind is the Agency
selected for this purpose by Anaxagoras: Love and Enmity by
Empedokles. Both the one and the other initiate the rotatory
cosmical motion; upon which follows as well the partial
disgregation of the chaotic mass, as the congregation of like
particles of it towards each other.
Nous, or mind, postulated by
Anaxagoras — how understood by later writers — how intended by
Anaxagoras himself.
The Nous of Anaxagoras was understood by later writers as a God;158 but there is nothing in the
fragments now remaining to justify the belief that the author
himself conceived it in that manner — or that he proposed it
(according to Aristotle’s expression159) as the
cause of all that was good in the world, assigning other agencies
as the causes of all evil. It is not characterised by him as a
person — not so much as the Love and Enmity of Empedokles. It is
not one but multitudinous, and all its separate manifestations are
alike, differing only as greater or less. It is in fact identical
with the soul, the vital principle, or vitality, belonging not
only to all men and to all plants also.160 It is
one substance, or form of matter among the
rest, but thinner than all of them (thinner than even fire or
air), and distinguished by the peculiar characteristic of being
absolutely unmixed. It has moving power and knowledge, like the
air of Diogenes the Apolloniate: it initiates movement; and it
knows about all the things which either pass into or pass out of
combination. It disposes or puts in order all things that were,
are, or will be; but it effects this only by acting as a
fermenting principle, to break up the huddled mass, and to
initiate rotatory motion, at first only on a small scale, then
gradually increasing. Rotation having once begun, and the mass
having been as it were unpacked and liberated the component
Homœomeries are represented as coming together by their own
inherent attraction.161 The
Anaxagorean Nous introduces order and symmetry into Nature, simply
by stirring up rotatory motion in the inert mass, so as to release
the Homœomeries from prison. It originates and maintains the great
cosmical fact of rotatory motion; which variety of motion, from
its perfect regularity and sameness, is declared by Plato also to
be the one most consonant to Reason and Intelligence.162 Such rotation being once set on
foot, the other phenomena of the universe are supposed to be
determined by its influence, and by their own tendencies and
properties besides: but there is no farther agency of Nous, which
only knows these phenomena as and when they occur.
Anaxagoras tried to explain them as well as he could; not by
reference to final causes, nor by assuming good purposes of Nous
which each combination was intended to answer — but by physical
analogies, well or ill chosen, and especially by the working of
the grand cosmical rotation.163
Plato and Aristotle blame Anaxagoras
for deserting his own theory.
This we learn from Plato and Aristotle, who blame Anaxagoras for
inconsistency in deserting his own hypothesis, and in invoking
explanations from physical agencies, to the neglect of Nous and
its supposed optimising purposes. But Anaxagoras, as far as we can
judge by his remaining fragments, seems not to have committed any
such inconsistency. He did not proclaim his Nous to be a powerful
extra-cosmical Architect, like the Demiurgus of Plato — nor an
intra-cosmical, immanent, undeliberating instinct (such as
Aristotle calls Nature), tending towards the production and
renewal of regular forms and conjunctions, yet operating along
with other agencies which produced concomitants irregular,
unpredictable, often even obstructive and monstrous. Anaxagoras
appears to conceive his Nous as one among numerous other real
agents in Nature, material like the rest, yet differing from the
rest as being powerful, simple, and pure from all mixture,164 as being endued with universal
cognizance, as being the earliest to act in point of time, and as
furnishing the primary condition to the activity of the rest by
setting on foot the cosmical rotation. The Homœomeries are
coeternal with, if not anterior to, Nous. They have laws and
properties of their own, which they follow, when once liberated,
without waiting for the dictation of Nous. What they do is known
by, but not ordered by, Nous.165 It is
therefore no inconsistency in Anaxagoras that he assigns to mind
one distinct and peculiar agency, but nothing more; and that when
trying to explain
the variety of phenomena he makes reference to other physical
agencies, as the case seems to require.166
Astronomy and physics of Anaxagoras.
In describing the formation of the Kosmos, Anaxagoras supposed
that, as a consequence of the rotation initiated by mind, the
primitive chaos broke up. “The Dense, Wet, Cold, Dark, Heavy, came
together into the place where now Earth is: Hot, Dry, Bare, Light,
Bright, departed to the exterior region of the revolving
Æther.”167 In such separation each followed its
spontaneous and inherent tendency. Water was disengaged from air
and clouds, earth from water: earth was still farther consolidated
into stones by cold.168 Earth
remained stationary in the centre, while fire and air were borne
round it by the force and violence of the rotatory movement. The
celestial bodies — Sun, Moon, and Stars — were solid bodies
analogous to the earth, either caught originally in the whirl of
the rotatory movement, or torn from the substance of the earth and
carried away into the outer region of rotation.169 They were rendered hot and luminous
by the fiery fluid in the rapid whirl of which they were hurried
along. The Sun was a stone thus made red-hot, larger than
Peloponnesus: the Moon was of earthy matter, nearer to the Earth,
deriving its light from the Sun, and including not merely plains
and mountains, but also cities and inhabitants.170 Of the planetary movements, apart
from the diurnal rotation of the celestial sphere, Anaxagoras took
no notice.171 He explained the periodical changes
in the apparent course of the sun and moon by resistances which
they encountered, the former from accumulated and condensed air,
the latter from the cold.172 Like
Anaximenes and Demokritus, Anaxagoras conceived the Earth as flat,
round in the surface, and not deep, resting on and supported by
the air beneath it. Originally (he thought) the earth was
horizontal, with the axis of celestial rotation perpendicular, and
the north pole at the zenith, so that this rotation was
then lateral, like that of a dome or roof; it was moreover equable
and unchanging with reference to every part of the plane of the
earth’s upper surface, and distributed light and heat equally to
every part. But after a certain time the Earth tilted over of its
own accord to the south, thus lowering its southern half, raising
the northern half, and causing the celestial rotation to appear
oblique.173
His geology, meteorology, physiology.
Besides these doctrines respecting the great cosmical bodies,
Anaxagoras gave explanations of many among the striking phenomena
in geology and meteorology — the sea, rivers, earthquakes,
hurricanes, hail, snow, &c.174 He
treated also of animals and plants — their primary origin, and the
manner of their propagation.175 He
thought that animals were originally produced by the hot and moist
earth; but that being once produced, the breeds were continued by
propagation. The seeds of plants he supposed to have been
originally contained in the air, from whence they fell down to the
warm and moist earth, where they took root and sprung up.176 He believed that all plants, as well
as all animals, had a certain measure of intelligence and
sentiment, differing not in kind but only in degree from the
intelligence and sentiment of men; whose superiority of
intelligence was determined, to a great extent, by their
possession of hands.177 He
explained sensation by the action of unlike upon unlike (contrary
to Empedokles, who referred it to the action of like upon like),178 applying this doctrine to the
explanation of the five senses separately. But he pronounced the senses
to be sadly obscure and insufficient as means of knowledge.
Apparently, however, he did not discard their testimony, nor
assume any other means of knowledge independent of it, but
supposed a concomitant and controlling effect of intelligence as
indispensable to compare and judge between the facts of sense when
they appeared contradictory.179 On this
point, however, it is difficult to make out his opinions.
The doctrines of Anaxagoras were
regarded as offensive and impious.
Anaxagoras, residing at Athens and intimately connected with
Perikles, incurred not only unpopularity, but even legal
prosecution, by the tenor of his philosophical opinions,
especially those on astronomy. To Greeks who believed in Helios
and Selênê as not merely living beings but Deities,
his declaration that the Sun was a luminous and fiery stone, and
the Moon an earthy mass, appeared alike absurd and impious. Such
was the judgment of Sokrates, Plato, and Xenophon, as well as of
Aristophanes and the general Athenian public.180 Anaxagoras was threatened with
indictment for blasphemy, so that Perikles was compelled to send
him away from Athens.
That physical enquiries into the nature of things, and attempts to
substitute scientific theories in place of the personal agency of
the Gods, were repugnant to the religious feelings of the Greeks,
has been already remarked.181 Yet
most of the other contemporary philosophers must have been open to
this reproach, not less than Anaxagoras; and we learn that the
Apolloniate Diogenes left Athens from the same cause. If others
escaped the like prosecution which fell upon Anaxagoras, we may
probably ascribe this fact to the state of political party at
Athens, and to the intimacy of the latter with Perikles. The
numerous political enemies of that great man might fairly hope to
discredit him in the public mind — at the very least to vex and
embarrass him — by procuring the trial and condemnation of
Anaxagoras. Against other philosophers, even when propounding
doctrines not less obnoxious respecting the celestial bodies,
there was not the same collateral motive to stimulate the
aggressive hostility of individuals.
Diogenes of Apollonia recognises one
primordial element.
Contemporary with Anaxagoras — yet somewhat younger, as far as we
can judge, upon doubtful evidence — lived the philosopher
Diogenes, a native of Apollonia in Krete. Of his life we know
nothing except that he taught during some time at Athens, which
city he was forced to quit on the same ground as Anaxagoras.
Accusations of impiety were either brought or threatened against
him:182 physical philosophy being offensive
generally to the received religious sentiment, which was specially
awakened and appealed to by the political opponents of Perikles.
Diogenes the Apolloniate, the latest in the series of Ionic
philosophers or physiologists, adopted, with modifications and
enlargements, the fundamental tenet of Anaximenes. There was
but one primordial element — and that element was air. He laid it
down as indisputable that all the different objects in this Kosmos
must be at the bottom one and the same thing: unless this were the
fact, they would not act upon each other, nor mix together, nor do
good and harm to each other, as we see that they do. Plants would
not grow out of the earth, nor would animals live and grow by
nutrition, unless there existed as a basis this universal sameness
of nature. No one thing therefore has a peculiar nature of its
own: there is in all the same nature, but very changeable and
diversified.183
Air was the primordial, universal
element.
Now the fundamental substance, common to all, was air. Air was
infinite, eternal, powerful; it was, besides, full of intelligence
and knowledge. This latter property Diogenes proved by the
succession of climatic and atmospheric phenomena of winter and
summer, night and day, rain, wind, and fine weather. All these
successions were disposed in the best possible manner by the air:
which could not have laid out things in such regular order and
measure, unless it had been endowed with intelligence. Moreover,
air was the source of life, soul, and intelligence, to men and
animals: who inhaled all these by respiration, and lost all of
them as soon as they ceased to respire.184
Air possessed numerous and diverse
properties; was eminently modifiable.
Air, life-giving and intelligent, existed everywhere, formed the
essence of everything, comprehended and governed everything.
Nothing in nature could be without it: yet at the same time all
things in nature partook of it in a different
manner.185 For it was distinguished by great
diversity of properties and by many gradations of intelligence. It
was hotter or colder — moister or drier — denser or rarer — more
or less active and movable — exhibiting differences of colour and
taste. All these diversities were found in objects, though all at
the bottom were air. Reason and intelligence resided in the warm
air. So also to all animals as well as to men, the common source
of vitality, whereby they lived, saw, heard, and understood, was
air; hotter than the atmosphere generally, though much colder than
that near the sun.186
Nevertheless, in spite of this common characteristic, the air was
in other respects so indefinitely modifiable, that animals were of
all degrees of diversity, in form, habits, and intelligence. Men
were doubtless more alike among themselves: yet no two of them
could be found exactly alike, furnished with the same dose of
aerial heat or vitality. All other things, animate and inanimate,
were generated and perished, beginning from air and ending in air:
which alone continued immortal and indestructible.187
Physiology of Diogenes — his
description of the veins in the human body.
The intelligence of men and animals, very unequal in character
and degree, was imbibed by respiration, the inspired air passing
by means of the veins and along the blood into all parts of the
body. Of the veins Diogenes gave a description remarkable for its
minuteness of detail, in an age when philosophers dwelt almost
exclusively in loose general analogies.188 He
conceived the principal seat of intelligence in man to be in the
thoracic cavity, or in the ventricle of the heart, where a
quantity of air was accumulated ready for distribution.189 The warm and dry air
concentrated round the brain, and reached by veins from the organs
of sense, was the centre of sensation. Taste was explained by the
soft and porous nature of the tongue, and by the number of veins
communicating with it. The juices of sapid bodies were sucked up
by it as by a sponge: the odorous stream of air penetrated from
without through the nostrils: both were thus brought into
conjunction with the sympathising cerebral air. To this air also
the image impressed upon the eye was transmitted, thereby causing
vision:190 while pulsations and vibrations of
the air without, entering through the ears and impinging upon the
same centre, generated the sensation of sound. If the veins
connecting the eye with the brain were inflamed, no visual
sensation could take place;191
moreover if our minds or attention were absorbed in other things,
we were often altogether insensible to sensations either of sight
or of sound: which proved that the central air within us was the
real seat of sensation.192 Thought
and intelligence, as well as sensation, was an attribute of the
same central air within us, depending especially upon its purity,
dryness, and heat, and impeded or deadened by moisture or cold.
Both children and animals had less intelligence than men: because
they had more moisture in their bodies, so that the veins were
choked up, and the air could not get along them freely to all
parts. Plants had no intelligence; having no apertures or ducts
whereby the air could pervade their internal structure. Our
sensations were pleasurable when there was much air mingled with
the blood, so as to lighten the flow of it, and to carry it easily
to all
parts: they were painful when there was little air, and when the
blood was torpid and thick.193
Kosmology and meteorology.
The structure of the Kosmos Diogenes supposed to have been
effected by portions of the infinite air, taking upon them new
qualities and undergoing various transformations. Some air,
becoming cold, dense, and heavy, sunk down to the centre, and
there remained stationary as earth and water: while the hotter,
rarer, and lighter air ascended and formed the heavens, assuming
through the intelligence included in it a rapid rotatory movement
round the earth, and shaping itself into sun, moon, and stars,
which were light and porous bodies like pumice stone. The heat of
this celestial matter acted continually upon the earth and water
beneath, so that the earth became comparatively drier, and the
water was more and more drawn up as vapour, to serve for
nourishment to the heavenly bodies. The stars also acted as
breathing-holes to the Kosmos, supplying the heated celestial mass
with fresh air from the infinite mass without.194 Like Anaxagoras, Diogenes conceived
the figure of the earth as flat and round, like a drum; and the
rotation of the heavens as lateral, with the axis perpendicular to
the surface of the earth, and the north pole always at the zenith.
This he supposed to have been the original arrangement; but after
a certain time, the earth tilted over spontaneously towards the
south — the northern half was elevated and the southern half
depressed — so that the north pole was no longer at the zenith,
and the axis of rotation of the heavens became
apparently oblique.195 He
thought, moreover, that the existing Kosmos was only of temporary
duration; that it would perish and be succeeded by future
analogous systems, generated from the same common substance of the
infinite and indestructible air.196
Respecting animal generation — and to some extent respecting
meteorological phenomena197 —
Diogenes also propounded several opinions, which are imperfectly
known, but which appear to have resembled those of Anaxagoras.
Leukippus and Demokritus — Atomic
theory.
Nearly contemporary with Anaxagoras and Empedokles, two other
enquirers propounded a new physical theory very different from
those already noticed — usually known under the name of the atomic
theory. This Atomic theory, though originating with the Eleate
Leukippus, obtained celebrity chiefly from his pupil Demokritus of
Abdera, its expositor and improver. Demokritus (born seemingly in
B.C. 460, and reported to have reached
extreme old age) was nine years younger than Sokrates,
thirty-three years older than Plato, and forty years younger than
Anaxagoras.198 The age of Leukippus is not known,
but he can hardly have been much younger than Anaxagoras.
Long life, varied travels, and
numerous compositions of Demokritus.
Of Leukippus we know nothing: of Demokritus, very little — yet
enough to exhibit a life, like that of Anaxagoras, consecrated to
philosophical investigation, and neglectful not merely of
politics, but even of inherited patrimony.199 His attention was chiefly turned
towards the study of Nature, with conceptions less vague, and a
more enlarged observation of facts, than any of his contemporaries
had ever bestowed. He was enabled to boast that no one had
surpassed him in extent of travelling over foreign lands, in
intelligent research and converse with enlightened natives, or in
following out the geometrical relations of lines.200 He spent several years in visiting
Egypt, Asia Minor, and Persia. His writings were numerous, and on
many different subjects, including ethics, as well as physics,
astronomy, and anthropology. None of them have been preserved. But
we read, even from critics like Dionysius of Halikarnassus and
Cicero, that they were composed in an impressive and semi-poetical
style, not unworthy to be mentioned in analogy with Plato; while
in range and diversity of subjects they are hardly inferior to
Aristotle.201
Relation between the theory of
Demokritus and that of Parmenides.
The theory of Leukippus and Demokritus (we have no means of
distinguishing the two) appears to have grown out the Eleatic
theory.202 Parmenides the Eleate (as I have
already stated) in distinguishing Ens, the self-existent, real, or
absolute, on one side — from the phenomenal and relative on the
other — conceived the former in such a way that its connection
with the latter was dissolved. The real and absolute, according to
him, was One, extended, enduring, continuous, unchangeable,
immovable: the conception of Ens included these affirmations, and
at the same time excluded peremptorily Non-Ens, or the contrary of
Ens. Now the plural, unextended, transient, discontinuous,
changeable, and moving, implied a mixture of Ens and Non-Ens, or a
partial transition from one to the other. Hence (since Non-Ens was
inadmissible) such plurality, &c., could not belong to the
real or absolute (ultra-phenomenal), and could only be affirmed as
phenomenal or relative. In the latter sense, Parmenides did
affirm it, and even tried to explain it: he explained the
phenomenal facts from phenomenal assumptions, apart from and
independent of the absolute. While thus breaking down the bridge
between the phenomenal on one side and the absolute on the other,
he nevertheless recognised each in a sphere of its own.
Demokritean theory — Atoms — Plena
and Vacua — Ens and Non-Ens.
This bridge the atomists undertook to re-establish. They admitted
that Ens could not really change — that there could be no real
generation, or destruction — no transformation of qualities — no
transition of many into one, or of one into many. But they denied
the unity and continuity and immobility of Ens: they affirmed that
it was essentially discontinuous, plural, and moving. They
distinguished the extended, which Parmenides had treated as an Unum
continuum, into extension with body, and extension without
body: into plenum and vacuum, matter and space.
They conceived themselves to have thus found positive meanings
both for Ens and Non-Ens. That which Parmenides called Non-Ens or
nothing, was in their judgment the vacuum; not less
self-existent than that which he called Something. They
established their point by showing that Ens, thus interpreted,
would become reconcilable to the phenomena of sense: which latter
they assumed as their basis to start from. Assuming motion as a
phenomenal fact, obvious and incontestable, they asserted that it
could not even appear to be a fact, without supposing vacuum
as well as body to be real: and the proof that both of them were
real was, that only in this manner could sense and reason be
reconciled. Farther, they proved the existence of a vacuum
by appeal to direct physical observation, which showed that bodies
were porous, compressible, and capable of receiving into
themselves new matter in the way of nutrition. Instead of the
Parmenidean Ens, one and continuous, we have a Demokritean Ens,
essentially many and discontinuous: plena and vacua,
spaces full and spaces empty, being infinitely intermingled.203 There existed atoms innumerable,
each one in itself essentially a plenum, admitting no
vacant space within it, and therefore indivisible as well as
indestructible: but each severed from the rest by surrounding
vacant space. The atom could undergo no change: but by means of
the empty space around, it could freely move. Each atom was too
small to be visible: yet all atoms were not equally small; there
were fundamental differences between them in figure and magnitude:
and they had no other qualities except figure and magnitude. As no
atom could be divided into two, so no two atoms could merge into
one. Yet though two or more atoms could not so merge together as
to lose their real separate individuality, they might nevertheless
come into such close approximation as to appear one, and to act on
our senses as a phenomenal combination manifesting itself by new
sensible properties.204
Primordial atoms differed only in
magnitude, figure, position, and arrangement — they had no
qualities, but their movements and combinations generated
qualities.
The bridge, broken down by Parmenides, between the real and the
phenomenal world, was thus in theory re-established. For
the real world, as described by Demokritus, differed entirely from
the sameness and barrenness of the Parmenidean Ens, and presented
sufficient movement and variety to supply a basis of explanatory
hypothesis, accommodated to more or less of the varieties in the
phenomenal world. In respect of quality, indeed, all the atoms
were alike, not less than all the vacua: such likeness was
(according to Demokritus) the condition of their being able to act
upon each other, or to combine as phenomenal aggregates.205 But in respect to quantity or
magnitude as well as in respect to figure, they differed very
greatly: moreover, besides all these diversities, the ordination
and position of each atom with regard to the rest were variable in
every way. As all objects of sense were atomic compounds, so, from
such fundamental differences — partly in the constituent atoms
themselves, partly in the manner of their arrangement when thrown
into combination — arose all the diverse qualities and
manifestations of the compounds. When atoms passed into new
combination, then there was generation of a new substance: when
they passed out of an old combination there was destruction: when
the atoms remained the same, but were merely arranged anew in
order and relative position, then the phenomenon was simply
change. Hence all qualities and manifestations of such compounds
were not original, but derivative: they had no “nature of their
own,” or law peculiar to them, but followed from the atomic
composition of the body to which they belonged. They were not real
and absolute, like the magnitude and figure of the constituent
atoms, but phenomenal and relative — i.e. they were powers
of acting upon correlative organs of sentient beings, and
nullities in the absence of such organs.206 Such
were the colour, sonorousness, taste, smell, heat,
cold, &c., of the bodies around us: they were relative,
implying correlative percipients. Moreover they were not merely
relative, but perpetually fluctuating; since the compounds were
frequently changing either in arrangement or in diversity of
atoms, and every such atomic change, even to a small extent,
caused it to work differently upon our organs.207
Combinations of atoms — generating
different qualities in the compounds.
Among the various properties of bodies, however, there were two
which Demokritus recognised as not merely relative to the
observer, but also as absolute and belonging to the body in
itself. These were weight and hardness — primary qualities (to use
the phraseology of Locke and Reid), as contrasted with the
secondary qualities of colour, taste, and the like. Weight, or
tendency downward, belonged (according to Demokritus) to each
individual atom separately, in proportion to its magnitude: the
specific gravity of all atoms was supposed to be equal. In
compound bodies one body was heavier than another, in proportion
as its bulk was more filled with atoms and less with vacant space.208 The hardness and softness of bodies
Demokritus explained by the peculiar size and peculiar junction of
their component atoms. Thus, comparing lead with iron, the former
is heavier and softer, the latter is lighter and harder. Bulk for
bulk, the lead contained a larger proportion of solid, and a
smaller proportion of interstices, than the iron: hence it was
heavier. But its structure was equable throughout; it had a
greater multitude of minute atoms diffused through its bulk,
equally close to and coherent with each other on every side, but
not more close and coherent on one side than on another. The
structure of the iron, on the contrary, was unequal and irregular,
including larger spaces of vacuum in one part, and
closer approach of its atoms in other parts: moreover these atoms
were in themselves larger, hence there was a greater force of
cohesion between them on one particular side, rendering the whole
mass harder and more unyielding than the lead.209
All atoms essentially separate from
each other.
We thus see that Demokritus, though he supposed single atoms to
be all of the same specific gravity, yet recognised a different
specific gravity in the various compounds of atoms or material
masses. It is to be remembered that, when we speak of contact or
combination of atoms, this is not to be understood literally and
absolutely, but only in a phenomenal and relative sense; as an
approximation, more or less close, but always sufficiently close
to form an atomic combination which our senses apprehended as one
object. Still every atom was essentially separate from every
other, and surrounded by a margin of vacant space: no two atoms
could merge into one, any more than one atom could be divided into
two.
All properties of objects, except
weight and hardness, were phenomenal and relative to the
observer. Sensation could give no knowledge of the real and
absolute.
Pursuant to this theory, Demokritus proclaimed that all the
properties of objects, except weight, hardness, and softness, were
not inherent in the objects themselves, but simply phenomenal and
relative to the observer — “modifications of our sensibility”.
Colour, taste, smell, sweet and bitter, hot and cold, &c.,
were of this description. In respect to all of them, man differed
from other animals, one man from another, and even the same man
from himself at different times and ages. There was no sameness of
impression, no unanimity or constancy of judgment, because there
was no real or objective “nature” corresponding to the impression.
From none of these senses could we at all learn what the external
thing was in itself. “Sweet and bitter, hot and cold (he said) are
by law or convention (i.e. these names designate the
impressions of most men on most occasions, taking no account of
dissentients): what really exists is, atoms and vacuum. The
sensible objects which we suppose and believe to exist do not
exist in truth; there exist only atoms and vacuum. We
know nothing really and truly about an object, either what it is
or what it is not: our opinions depend upon influences from
without, upon the position of our body, upon the contact and
resistances of external objects. There are two phases of
knowledge, the obscure and the genuine. To the obscure belong all
our senses — sight, hearing, smell, taste, touch. The genuine is
distinct from these. When the obscure phase fails, when we can no
longer see, nor hear, nor smell, nor taste, nor touch — from
minuteness and subtlety of particles — then the genuine phase, or
reason and intelligence, comes into operation.”210
Reason alone gave true and real
knowledge, but very little of it was attainable.
True knowledge (in the opinion of Demokritus) was hardly at all
attainable; but in so far as it could be attained, we must seek
it, not merely through the obscure and insufficient avenues of
sense, but by reason or intelligence penetrating to the ultimatum
of corpuscular structure, farther than sense could go. His atoms
were not pure Abstracta (like Plato’s Ideas and geometrical plane
figures, and Aristotle’s materia prima), but concrete bodies, each
with its own211 magnitude, figure, and movement; too
small to be seen or felt by us, yet not too small to be seen or
felt by beings endowed with finer sensitive power. They were
abstractions mainly in so far as all other qualities were supposed
absent. Demokritus professed to show how the movements,
approximations, and collisions of these atoms, brought them into
such combinations as to form the existing Kosmos; and not that
system alone, but also many other cosmical systems, independent of
and different from each other, which he supposed to exist.
No separate force required to set the
atoms in motion — they moved by an inherent force of their own.
Like atoms naturally tend towards like. Rotatory motion, the
capital fact of the Kosmos.
How this was done we cannot clearly make out, not having before
us the original treatise of Demokritus, called the Great
Diakosmos. It is certain, however, that he did not invoke any
separate agency to set the atoms in motion — such as
the Love and Discord of Empedokles — the Nous or Intelligence of
Anaxagoras. Demokritus supposed that the atoms moved by an
inherent force of their own: that this motion was as much without
beginning as the atoms themselves:212 that
eternal motion was no less natural, no more required any special
cause to account for it, than eternal rest. “Such is the course of
nature — such is and always has been the fact,” was his ultimatum.213 He farther maintained that all the
motions of the atoms were necessary — that is, that they followed
each other in a determinate order, each depending upon some one or
more antecedents, according to fixed laws, which he could not
explain.214 Fixed laws, known or
unknown, he recognised always. Fortune or chance was only a
fiction imagined by men to cover their own want of knowledge and
foresight.215 Demokritus seems to have supposed
that like atoms had a spontaneous tendency towards like; that all,
when uncombined, tended naturally downwards, yet with unequal
force, owing to their different size, and weight proportional to
size; that this unequal force brought them into impact and
collision one with another, out of which was generated a rotatory
motion, gradually extending itself, and comprehending a larger and
larger number of them, up to a certain point, when an exterior
membrane or shell was formed around them.216 This rotatory motion was the capital
fact which both constituted the Kosmos, and maintained the
severance of its central and peripheral masses — Earth and Water
in the centre — Air, Fire, and the celestial bodies, near the
circumference. Demokritus, Anaxagoras, and Empedokles, imagined
different preliminary hypotheses to get at the fact of rotation;
but all employed the fact, when arrived at, as a basis from which
to deduce the formation of the various cosmical bodies and their
known manifestations.217 In
respect to these bodies — Sun, Moon, Stars, Earth, &c. —
Demokritus seems to have held several opinions like those of
Anaxagoras. Both of them conceived the Sun as a redhot mass, and
the Earth as a flat surface above and below, round horizontally
like a drum, stationary in the centre of the revolving celestial
bodies, and supported by the resistance of air beneath.218
Researches of Demokritus on zoology
and animal generation.
Among the researches of Demokritus there were some relating to
animal generation, and zoology; but we cannot find that his
opinions on these subjects were in peculiar connection with his
atomic theory.219 Nor do we know how far he carried
out that theory into detail by tracing the various phenomenal
manifestations to their basis in atomic reality, and by showing
what particular magnitude, figure, and arrangement of atoms
belonged to each. It was only in some special cases that he thus
connected determinate atoms with compounds of determinate quality;
for example, in regard to the four Empedoklean elements. The atoms
constituting heat or fire he affirmed to be small and globular,
the most mobile, rapid, and penetrating of all; those constituting
air, water, and earth, were an assemblage of all varieties of
figures, but differed from each other in magnitude — the atoms of
air being apparently smallest, those of earth largest.220
His account of mind — he identified
it with heat or fire diffused throughout animals, plants, and
nature generally. Mental particles intermingled throughout all
the frame with corporeal particles.
In regard to mind or soul generally, he identified it with heat
or fire, conceiving it to consist in the same very small,
globular, rapidly movable atoms, penetrating everywhere: which he
illustrated by comparison with the fine dust seen in sunbeams when
shining through a doorway. That these were the constituent atoms
of mind, he proved by the fact, that its first and most essential
property was to move the body, and to be itself moved.221 Mind, soul, the vital principle,
fire, heat, &c., were, in the opinion of Demokritus,
substantially identical — not confined to man or even to animals,
but diffused, in unequal proportions, throughout plants, the air,
and nature generally. Sensation, thought, knowledge, were all
motions of mind or of these restless mental particles, which
Demokritus supposed to be distributed over every part of the
living body, mingling and alternating with the corporeal
particles.222 It was the essential condition of
life, that the mental particles should be maintained in
proper number and distribution throughout the body; but by their
subtle nature they were constantly tending to escape, being
squeezed or thrust out at all apertures by the pressure of air on
all the external parts. Such tendency was counteracted by the
process of respiration, whereby mental or vital particles, being
abundantly distributed throughout the air, were inhaled along with
air, and formed an inward current which either prevented the
escape, or compensated the loss, of those which were tending
outwards. When breathing ceased, such inward current being no
longer kept up, the vital particles in the interior were speedily
forced out, and death ensued.223
Different mental aptitudes attached
to different parts of the body.
Though Demokritus conceived those mental particles as distributed
all over the body, yet he recognised different mental aptitudes
attached to different parts of the body. Besides the special
organs of sense, he considered intelligence as attached to the
brain, passion to the heart, and appetite to the liver:224 the same tripartite division
afterwards adopted by Plato. He gave an explanation of perception
or sensation in its different varieties, as well as of
intelligence or thought. Sensation and thought were, in his
opinion, alike material, and alike mental. Both were affections of
the same peculiar particles, vital or mental, within us: both were
changes operated in these particles by effluvia or images from
without; nevertheless the one change was different from the other.225
In regard to sensations, Demokritus said little about those of touch,
smell, and hearing; but he entered at some length into those of
sight and taste.226
Explanation of different sensations
and perceptions. Colours.
Proceeding upon his hypothesis of atoms and vacua as the only
objective existences, he tried to show what particular
modifications of atoms, in figure, size, and position, produced
upon the sentient the impressions of different colours. He
recognised four fundamental or simple colours — white, black, red,
and green — of which all other colours were mixtures and
combinations.227 White colour (he said) was caused by
smooth surfaces, which presented straight pores and a transparent
structure, such as the interior surface of shells: where these
smooth substances were brittle or friable, this arose from the
constituent atoms being at once spherical and loosely connected
together, whereby they presented the clearest passage through
their pores, the least amount of shadow, and the purest white
colour. From substances thus constituted, the effluvia flowed out
easily, and passed through the intermediate air without becoming
entangled or confused with it. Black colour was caused by rough,
irregular, unequal substances, which had their pores crooked and
obstructed, casting much shadow, and sending forth slowly their
effluvia, which became hampered and entangled with the intervening
medium of air. Red colour arose from the effluvia of spherical
atoms, like those of fire, though of larger size: the connection
between red colour and fire was proved by the fact that heated
substances, man as well as the metals, became red. Green was
produced by atoms of large size and wide vacua, not restricted to
any determinate shape, but arranged in peculiar order and
position. These four were given by Demokritus as the simple
colours. But he recognised an infinite diversity of compound
colours, arising from mixture of them in different proportions,
several of which he explained — gold-colour, purple, blue, violet,
leek-green, nut-brown, &c.228
Vision caused by the outflow of
effluvia or images from objects. Hearing.
Besides thus setting forth those varieties of atoms and atomic
motions which produced corresponding varieties of colour,
Demokritus also brought to view the intermediate stages whereby
they realised the act of vision. All objects, compounds of the
atoms, gave out effluvia or images resembling themselves. These
effluvia stamped their impression, first upon the intervening air,
next upon the eye beyond: which, being covered by a fine membrane,
and consisting partly of water, partly of vacuum, was well
calculated to admit the image. Such an image, the like of which
any one might plainly see by looking into another person’s eye,
was the immediate cause of vision.229 The
air, however, was no way necessary as an intervening medium, but
rather obstructive: the image proceeding from the object would be
more clearly impressed upon the eye through a vacuum: if the air
did not exist, vision would be so distinct, even at the farthest
distance, that an object not larger than an ant might be seen in
the heavens.230 Demokritus believed that the visual
image, after having been impressed upon the eye, was distributed
or multiplied over the remaining body.231 In like
manner, he believed that, in hearing, the condensed air carrying
the sound entered with some violence through the ears, passed
through the veins to the brain, and was from thence dispersed over
the body.232 Both sight and hearing were thus not
simply acts of the organ of sense, but concurrent operations of
the entire frame: over all which (as has been already stated) the
mental or vital particles were assumed to be disseminated.
Differences of taste — how explained.
Farther, Demokritus conceived that the diversities of taste were
generated by corresponding diversities of atoms, or compounds of
atoms, of particular figure, magnitude and position. Acid taste
was caused by atoms rough, angular, twisted, small, and subtle,
which forced
their way through all the body, produced large interior vacant
spaces, and thereby generated great heat: for heat was always
proportional to the amount of vacuum within.233 Sweet taste was produced by
spherical atoms of considerable bulk, which slid gently along and
diffused themselves equably over the body, modifying and softening
the atoms of an opposite character. Astringent taste was caused by
large atoms with many angles, which got into the vessels,
obstructing the movement of fluids both in the veins and
intestines. Salt taste was produced by large atoms, much entangled
with each other, and irregular. In like manner Demokritus assigned
to other tastes particular varieties of generating atoms: adding,
however, that in every actual substance, atoms of different
figures were intermingled, so that the effect of each on the whole
was only realised in the ratio of the preponderating figure.234 Lastly, the working of all atoms, in
the way of taste, was greatly modified by the particular system
upon which they were brought to act: effects totally opposite
being sometimes produced by like atoms upon different individuals.235
Thought or Intelligence — was
produced by influx of atoms from without.
As sensation, so also thought or intelligence, was produced by
the working of atoms from without. But in what manner the
different figures and magnitudes of atoms were understood to act,
in producing diverse modifications of thought, we do not find
explained. It was, however, requisite that there should be a
symmetry, or correspondence of condition between the thinking mind
within and the inflowing atoms from without, in order that these
latter might work upon a man properly: if he were too hot, or too
cold, his mind went astray.236 Though
Demokritus identified the mental or vital particles with the spherical
atoms constituting heat or fire, he nevertheless seems to have
held that these particles might be in excess as well as in
deficiency, and that they required, as a condition of sound mind,
to be diluted or attempered with others. The soundest mind,
however, did not work by itself or spontaneously, but was put in
action by atoms or effluvia from without: this was true of the
intellectual mind, not less than of the sensational mind. There
was an objective something without, corresponding to and
generating every different thought — just as there was an
objective something corresponding to every different sensation.
But first, the object of sensation was an atomic compound having
some appreciable bulk, while that of thought might be separate
atoms or vacua so minute as to be invisible and intangible. Next,
the object of sensation did not reveal itself as it was in its own
nature, but merely produced changes in the percipient, and
different changes in different percipients (except as to heavy and
light, hard and soft, which were not simply modifications of our
sensibility, but were also primary qualities inherent in the
objects themselves237): while
the object of thought, though it worked a change in the thinking
subject, yet also revealed itself as it was, and worked alike upon
all.
Sensation, obscure knowledge relative
to the sentient; Thought, genuine knowledge — absolute, or
object per se.
Hence Demokritus termed sensation, obscure knowledge —
thought, genuine knowledge.238 It was
only by thought (reason, intelligence) that the fundamental
realities of nature, atoms and vacua, could be apprehended: even
by thought, however, only imperfectly, since there was always more
or less of subjective movements and conditions, which partially
clouded the pure objective apprehension — and since the atoms
themselves were in perpetual movement, as well as inseparably
mingled one with another. Under such obstructions, Demokritus
proclaimed that no clear or certain knowledge was attainable: that
the sensible objects, which men believed to be absolute realities,
were only phenomenal and relative to us, — while the atoms and
vacua, the true existences or things in themselves, could scarce
ever be known as they were:239 that
truth was hidden in an abyss, and out of our reach.
Idola or images were thrown off from
objects, which determined the tone of thoughts, feelings,
dreams, divinations, &c.
As Demokritus supposed both sensations and thoughts to be
determined by effluvia from without, so he assumed a similar cause
to account for beliefs, comfortable or uncomfortable dispositions,
fancies, dreams, presentiments, &c. He supposed that the air
contained many effluences, spectres, images, cast off from persons
and substances in nature — sometimes even from outlying very
distant objects which lay beyond the bounds of the Kosmos. Of
these images, impregnated with the properties, bodily and mental,
of the objects from whence they came, some were beneficent, others
mischievous: they penetrated into the human body through the pores
and spread their influence all through the system.240 Those thrown off by jealous and
vindictive men were especially hurtful,241 as they
inflicted suffering corresponding to the tempers of those with
whom they originated. Trains of thought and feeling were thus
excited in men’s minds; in sleep,242 dreams,
divinations, prophetic warnings, and threats, were communicated:
sometimes, pestilence and other misfortunes were thus begun.
Demokritus believed that men’s happiness depended much upon the
nature and character of the images which might approach them,
expressing an anxious wish that he might himself meet with such as
were propitious.243 It was
from grand and terrific images of this nature, that he supposed
the idea and belief of the Gods to have arisen: a supposition
countenanced by the numerous tales, respecting appearances of the
Gods both to dreaming and to waking men, current among the poets
and in the familiar talk of Greece.
Universality of Demokritus — his
ethical views.
Among the lost treasures of Hellenic intellect, there are few
which are more to be regretted than the works of Demokritus.
Little is known of them except the titles: but these are
instructive as well as multifarious. The number of different
subjects which they embrace is astonishing. Besides his atomic
theory, and its application to cosmogony and physics, whereby he
is chiefly known, and from whence his title of physicus
was derived — we find mention of works on geometry, arithmetic,
astronomy, optics, geography or geology, zoology, botany,
medicine, music, and poetry, grammar, history, ethics, &c.244 In such universality he is the
predecessor, perhaps the model, of Aristotle. It is not likely
that this wide range of subjects should have been handled in a
spirit of empty generality, without facts or particulars: for we
know that his life was long, his curiosity insatiable, and his
personal travel and observation greater than that of any
contemporary. We know too that he entered more or less upon the
field of dialectics, discussing those questions of evidence which
became so rife in the Platonic age. He criticised, and is said to
have combated, the doctrine laid down by Protagoras, “Man is the
measure of all things”. It would have been interesting to know
from what point of view he approached it: but we learn only the
fact that he criticised it adversely.245 The
numerous treatises of Demokritus, together with the proportion of
them which relate to ethical and social subjects, rank him with
the philosophers of the Platonic and Aristotelian age. His Summum
Bonum, as far as we can make out, appears to have been the
maintenance of mental serenity and contentment: in which view he
recommended a life of tranquil contemplation, apart from
money-making, or ambition, or the exciting pleasures of life.246