the Pythagoreans prevented him, saying that there was no advantage in doing so, for already the books were widely circulated. And there is clear evidence for this in the fact that Plato, who mentions almost all the early philosophers, never once alludes to Democritus, not even where it would be necessary to controvert him, obviously because he knew that he would have to match himself against the prince of philosophers, for whom, to be sure, Timon ° has this meed of praise b : Such is the wise Democritus, the guardian of discourse, keen-witted disputant, among the best I ever read. As regards chronology, he was, as he says himself in the Lesser Diacosmos, a young man when Anaxagoras was old, being forty years his junior. He says that the Lesser Diacosmos was compiled 730 years after the capture of Troy. According to Apollodorus in his Chronology he would thus have been born in the 80th Olympiad, but according to Thrasylus in his pamphlet entitled Prolegomena to the Reading of the Works of Democritus, in the third year of the 77th Olympiad,** which makes him, adds Thrasylus, one year older than Socrates. He would then be a contemporary of Archelaus, the pupil of Anaxagoras, and of the school of Oenopides ; indeed he mentions Oenopides. Again, he alludes to the doctrine of the One held by Parmenides and Zeno, they being evidently the persons most talked about in his day ; he also mentions Protagoras of Abdera, who, it is admitted, was a contemporary of Socrates. Athenodorus in the eighth book of his Walks relates that, when Hippocrates came to see him, he ordered