Anaximander (Greek: Αναξίμανδρος)(c.610 BC–c. 546 BC), also known as Aniximander, was the second of the physical philosophers of Ionia, a citizen of Miletus, a companion or pupil of Thales, and teacher of Anaximenes of Miletus. Little is known of his life and work. Aelian makes him the leader of the Milesian colony to Amphipolis, and hence some have inferred that he was a prominent citizen. The computations of Apollodorus of Athens have fixed his birth in 611, and his death shortly after 547 B.C.
Ancient sources represent him as a successful student of astronomy and geography, and an early proponent of exact science. He has also been said to have introduced such astronomical instruments as the sundial and the gnomon to ancient GreeceDiogenes Laertius - Anaximander. Furthermore, he is credited with having created the first map of the world, which was circular in form and showed the known lands of the world grouped around the Aegean Sea at the center and all of this was surrounded by the ocean.
Unlike other Presocratics he never defined this principle precisely, and it has generally (e.g. by Aristotle and Augustine) been understood as a sort of primal chaos. It embraced the opposites of hot and cold, wet and dry, and directed the movement of things, by which there grew up all of the host of shapes and differences which are found in "all the worlds"--as he believed there were many.
Out of the vague and limitless body there sprang a central mass — this earth of ours, cylindrical in shape, poised equidistant from surrounding orbs of fire, which had originally clung to it like the bark round a tree, until their continuity was severed, and they parted into several wheel-shaped and fire-filled bubbles of air.
Man himself had come into being by like transmutations. Mankind was supposed by Anaximander to have sprung from some other species of animals, probably aquatic. For, he thought, man with his extended infancy could not have survived, originally, in the manner he does presently. For this, even though he had no theory of natural selection, some people consider him to be evolutionary theory's most ancient proponent. The theory of an aquatic descent of man was re-conceived centuries later as the aquatic ape hypothesis.
Anaximander offered up the theory of the apeiron in direct response to the earlier theory of his teacher, Thales, who had claimed that the primary substance was water. Anaximander reasoned that water cannot embrace all of the opposites found in nature — for example, water can only be wet, never dry — and therefore, it can not be the one primary substance. Nor could any of the other candidates, so Anaximander postulated the apeiron as a substance that, although it could not be perceived directly, could explain the opposites he could clearly see around him.
Nietzsche, in his Philosophy in the Tragic Age of the Greeks, claimed that Anaximander was a pessimist. Anaximander asserted that the primal being of the world was state of indefiniteness. In accordance with this, anything definite has to eventually pass back into indefiniteness. In other words, Anaximander viewed "...all coming-to-be as though it were an illegitimate emancipation from eternal being, a wrong for which destruction is the only penance." (Ibid., § 4) The world of individual objects, in this way of thinking, has no worth and should perish.
Map, circa ? (lost)
Some of Anaximander's ideas were also preserved in Theophrastus's (lost) history of philosophy, and re-quoted by later authors.
610 BC births | 609 BC births | 547 BC deaths | Ancient Greek philosophers | Ancient Greek physicists | Presocratic philosophers | Greek and Roman astronomers
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