Book 9
7.37
If the Rivals be the work of Plato, says Thrasylus, Democritus will be the unnamed character, different from Oenopides and Anaxagoras, who makes his appearance when conversation is going on with Socrates about philosophy, and to whom Socrates says that the philosopher is like the all-round athlete.Rivals, 132 a-c. And truly Democritus was versed in every department of philosophy, for he had trained himself both in physics and in ethics, nay more, in mathematics and the routine subjects of education, and he was quite an expert in the arts. From him we have the saying, Speech is the shadow of action. Demetrius of Phalerum in his Defence of Socrates affirms that he did not even visit Athens. This is to make the larger claim, namely, that he thought that great city beneath his notice, because he did not care to win fame from a place, but preferred himself to make a place famous.
7.38
His character can also be seen from his writings. He would seem, says Thrasylus, to have been an admirer of the Pythagoreans. Moreover, he mentions Pythagoras himself, praising him in a work of his own entitled Pythagoras. § 46. He seems to have taken all his ideas from him and, if chronology did not stand in the way, he might have been thought his pupil. Glaucus of Rhegium certainly says that he was taught by one of the Pythagoreans, and Glaucus was his contemporary. Apollodorus of Cyzicus, again, will have it that he lived with Philolaus.
7.38
He would train himself, says Antisthenes, by a variety of means to test his sense-impressions by going at times into solitude and frequenting tombs.
