Anaximander
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The Greek philosopher Anaximander of Miletus followed Thales in his philosophical and scientific interests. He wrote a book, of which one fragment survives, and is the first Presocratic philosopher about whom we have enough information to reconstruct his theories in any detail. He was principally concerned with the origin, structure and workings of the world, and attempted to account for them consistently, through a small number of principles and mechanisms. Like other thinkers of his tradition, he gave the Olympian gods no role in creating the world or controlling events. Instead, he held that the world originated from a vast, eternal, moving material of no definite nature, which he called apeiron ('boundless' or ‘unlimited'). From this, through obscure processes including one called 'separation off', arose the world as we know it. Anaximander described the kosmos (world) and stated the distances of the celestial bodies from the earth. He accounted for the origin of animal life and explained how humans first emerged. He pictured the world as a battleground in which opposite natures, such as hot and cold, constantly encroach upon one another, and described this process as taking place with order and regularity.
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Anaximander (c.610-after 546 BC) The Greek philosopher Anaximander of Miletus followed Thales in his
philosophical and scientific interests.
He wrote a book, of which one fragment survives, and is the first Presocratic
philosopher about whom we have enough information to reconstruct his theories in any detail.
He was principally
concerned with the origin, structure and workings of the world, and attempted to account for them consistently,
through a small number of principles and mechanisms.
Like other thinkers of his tradition, he gave the Olympian
gods no role in creating the world or controlling events.
Instead, he held that the world originated from a vast,
eternal, moving material of no definite nature, which he called apeiron ('boundless' or ‘unlimited').
From this,
through obscure processes including one called 'separation off', arose the world as we know it.
Anaximander
described the kosmos (world) and stated the distances of the celestial bodies from the earth.
He accounted for
the origin of animal life and explained how humans first emerged.
He pictured the world as a battleground in which
opposite natures, such as hot and cold, constantly encroach upon one another, and described this process as
taking place with order and regularity.
1 Life and work Very little is known of Anaximander's life.
His dates (c.610
BC-shortly after 546 BC) are not certain, but make him a generation younger than Thales, whose pupil, successor
and associate he is variously called.
Like Thales he was a Milesian.
He is said to have travelled to Sparta, where he
predicted an earthquake and set up a gnōmōn (a Babylonian invention for marking the length of the sun's shadow,
which he is credited with discovering) on the sundials there to mark solstices, equinoxes and the hours of the day.
He is also said to have led a Milesian colony to Apollonia on the Black Sea and, it is reported, made the first map
and the first 'sphere' or celestial globe.
He wrote at least one work, known as On Nature (the title the Alexandrian
scholars later gave to the works of most of the Presocratics; it is not Anaximander's title) in which he presented his
views on the kosmos.
(We hear of several other works - Circuit of the Earth, On the Fixed Stars, Celestial Globe but these are dubious.) As with other reported discoveries of the Presocratics, this evidence demands cautious
treatment.
The map is possible, although it will have been extremely crude and founded more on principles of
symmetry than on measurement.
(See Herodotus, IV 36 for a critical assessment of early maps.) And, since
Anaximander had views about the size and shape of the kosmos, he may have constructed a model of it.
If he
foretold an earthquake however, it was just a lucky guess.
Alternatively, later authors could have invented the
prediction to give Anaximander something comparable to Thales' prediction of an eclipse.
The report about the
gnōmōn is usually accepted as likely, as it agrees with Anaximander's undoubted interest in astronomy.
2 The
apeiron Anaximander is best known for his physical theory, which described the original material of the universe as
apeiron: 'boundless' or 'unlimited' or, possibly, 'indefinite' (the word later acquired the more technical meaning of
'infinite').
What this material is like, how it is related to the kosmos around us, and how Anaximander justified his
view are basic and controversial issues in understanding his thought.
To begin with, what kinds of bounds or limits
does it lack? The description 'eternal and unageing' indicates that it is unlimited in time, and since it 'surrounds all
the kosmoi [plural of kosmos]' (Hippolytus, Refutation I 6.1, A11) it is vast in extent, and if not infinite, at least
unlimited in that there is nothing outside it that limits or determines its size.
Furthermore, since it is 'neither water
nor any other of the things called elements, but some different apeiron nature' (Simplicius, On Aristotle's Physics
24.16, A9), it is without any definite character or qualities.
Hence some argue that it was called unlimited because
it lacks internal boundaries or distinctions.
It is not clear that the word apeiron can bear this meaning, but
Anaximander's original substance is nevertheless indefinite in this way too.
The original substance was also the
originative substance 'out of which came to be all the heavens and the kosmoi in them' (On Aristotle's Physics
24.17, A9).
Anaximander presented a cosmogony in which the kosmos arose from the apeiron in a series of
developmental stages.
Thus, the apeiron is the ancestor of all that exists.
Aristotle and his followers present
another view: the apeiron is the element or substance out of which everything is composed, an Aristotelian material
cause (see Aristotle §9).
Thus, everything is made of apeiron in the way coal and diamonds are made of carbon.
Aristotle occasionally identifies the apeiron instead as a mixture of the four elements that he recognized, and also
as a substance intermediate between fire and air or between air and water.
These 'mixture' and 'intermediate'
interpretations must be discarded as guesswork, and the idea that it is a material cause must be rejected as
Aristotelian invention too, since it does not fit the rest of the evidence on the role of the apeiron in Anaximander's
system.
Not only is the apeiron our ancestor, it is divine.
Anything that is 'eternal and ageless' and also 'in motion'
(On Aristotle's Physics 24.13, A9), which is 'immortal and imperishable' and which 'surrounds all and steers all'
counts, for the Greeks, as a divine being (Aristotle, Physics 203b11-13, A15).
It is disputed how many of these
words were Anaximander's, but the ideas they represent seem authentic.
Just what ‘divine' means in this context is
of critical importance.
In some sense the apeiron is the Creator, but it is remote from the Greeks' anthropomorphic
conception of the Olympian gods, who demand worship, intervene in human affairs and are motivated by pride,
anger and favouritism.
Like Xenophanes' god, the apeiron is 'not similar to mortals in form or thought' (Xenophanes,
fr.
23) (see Xenophanes §3).
Unlike Xenophanes' god, the apeiron lacks perceptive and cognitive capacities
(Xenophanes, fr.
24).
It seems to have generated the kosmos not through any conscious purpose, but somehow as
the result of its eternal motion, and the sense in which it 'steers all' seems to be simply that the way the kosmos
was generated guarantees that the events that take place in it are governed by an immutable, impersonal, universal
law.
Why make the originative substance apeiron? The sources attribute two arguments for this thesis to
Anaximander (although other ancient arguments are sometimes thought to go back to him as well).
The first, which
argues that it must be apeiron in the sense of 'unlimited in extent', goes as follows: 'it must be unlimited lest
generation fail' (Aristotle, Physics 208a8, A14; Aëtius, I 3.3, A14).
Aristotle criticizes the argument on the grounds
that 'the destruction of one thing can be the origin of another, the total being limited'.
If Anaximander is assumed to
be referring either to our own finite kosmos or to a succession of finite kosmoi, one after another (see §3), it is
indeed a bad argument.
But if he held that there are an unlimited number of kosmoi at the same time, as Aëtius'
text suggests, the argument succeeds as far as the vagueness of the term 'unlimited' permits.
The second
argument concludes that the apeiron is qualitatively indefinite: 'The elements have opposite qualities.
Air is cold,
water wet, fire hot.
If any of them were infinite, the others would have been destroyed.
Therefore, the elements.
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