[596] But he stands out as one of the most original minds in the whole history of thought. No Greek thinker, not Aristotle himself, has struck so deep as he into fundamental problems; though the absurd label of "the laughing philosopher," bestowed on him by some peculiarly unphilosophic mind, has delayed the later recognition of his greatness, clear as it was to Bacon. [597] The vital maxim, "Nothing from nothing: nothing into nothing," derives substantially from him. [598] His atomic theory, held in conjunction with a conception of "mind-stuff" similar to that of Anaxagoras, may be termed the high-water mark of ancient scientific thought; and it is noteworthy that somewhat earlier in the same age Empedokles of Agrigentum, another product of the freer colonial life, threw out a certain glimmer of the Darwinian conception--perhaps more clearly attained by Anaximandros--that adaptations prevail in nature just because the adaptations fit organisms to survive, and the non-adapted perish. [599] In his teaching, too, the doctrine of the indestructibility of matter is clear and firm; [600] and the denial of anthropomorphic deity is explicit. [601] But Empedokles wrought out no solid system: "half-mystic and half-rationalist, he made no attempt to reconcile the two inconsistent sides of his intellectual character"; [602] and his explicit teaching of metempsychosis [603] and other Pythagoreanisms gave foothold for more delusion than he ever dispelled. [604] On the whole, he is one of the most remarkable personalities of antiquity, moving among men with a pomp and gravity which made them think of him as a God, denouncing their sacrifices, and no less their eating of flesh; and checking his notable self-exaltation by recalling the general littleness of men. But he did little to enlighten them; and Aristotle passed on to the world a fatal misconception of his thought by ascribing to him the notion of automatism where he was asserting a "necessity" in terms of laws which he avowedly could not explain. [605] Against such misconception he should have provided. Demokritos, however, shunned dialectic and discussion, and founded no school; [606] and although his atomism was later adopted by Epicurus, it was no more developed on a basis of investigation and experiment than was the biology of Empedokles. His ethic, though wholly rationalistic, leant rather to quietism and resignation than to reconstruction, [607] and found its application only in the later static message of Epicurus. Greek society failed to set up the conditions needed for progress beyond the point gained by its unguided forces.