But Heraclitus of Ephesus, a physicist, bewailed all things, accusing the ignorance of all life and of all men, and pitying the life of mortals. For he claimed that he knew all things and other men nothing.[52] And he also made statements nearly in accord with Empedocles, as he said that Discord and Friendship were the beginning of all things, and that the intellectual fire was God and that all things were borne in upon one another and did not stand still. And like Empedocles he said that every place of ours was filled with evil things, and that these come as far as the moon extending from the place surrounding the earth, but go no further, since the whole place above the moon is very pure.[53] Thus, too, it seemed to Heraclitus. [Sidenote: p. 16.] And after these came other physicists whose opinions we do not think it needful to declare as they are in no way incongruous with those aforesaid. But since the school was by no means small, and many physicists afterwards sprang from these, all discoursing in different fashion on the nature of the universe, it seems also fit to us, now that we have set forth the philosophy derived from Pythagoras, to return in order of succession to the opinions of those who adhered to Thales, and after recounting the same to come to the ethical and logical philosophies, whereof Socrates founded the ethical and Aristotle the dialectic. 5. _About Anaximander._ Now Anaximander was a hearer of Thales. He was Anaximander of Miletus, son of Praxiades.[54] He said that the beginning of the things that are was a certain nature of the Boundless from which came into being the heavens and the ordered worlds[55] within them. And that this principle is eternal and grows not old and encompasses all the ordered worlds. And he says time is limited by birth, [Sidenote: p. 17.] substance,[56] and death. He said that the Boundless is a principle and element of the things that are and was the first to call it by the name of principle. But that there is an eternal movement towards Him wherein it happens that the heavens are born. And that the earth is a heavenly body[57] supported by nothing, but remaining in its place by reason of its equal distance from everything. And that its form is a watery cylinder[58] like a stone pillar; and that we tread on one of its surfaces, but that there is another opposite to it. And that the stars are a circle of fire distinct from the fire in the cosmos, but surrounded by air. And that certain fiery exhalations exist in those places where the stars appear, and by the obstruction of these exhalations come the eclipses. And that the moon appears sometimes waxing and sometimes waning through the obstruction or closing of her paths. And that the circle of the sun is 27 times greater than that of the moon and that the sun is in the highest place in the heavens and the circles of the fixed [Sidenote: p. 18.] stars in the lowest. And that the animals came into being in