Plato, in his theory of Ideas, says, “That since there is such a thing as memory, the ideas are in existent things, because memory is only conversant about what is stable and enduring; and that no other thing is durable except ideas, for in what way,” he continues, “could animals be preserved, if they had no ideas to guide them, and if, in addition to them, they had not an intellect given to them by nature?” But as it is they recollect similitudes, and also their food, so as to know what kind of food is fit for them; which they learn because the notion of similarity is implanted naturally in every animal; owing to which notion they recognize those of the same species as themselves. What is it then that Epicharmus says?
And in a subsequent passage he says:—
And these and similar speculations are examined and compared by Alcimus through four books, where he shows how much assistance Plato has derived from Epicharmus. And that Epicharmus himself was not indisposed to appreciate his own wisdom, one may learn from these lines, in which he predicts that there will arise some one to imitate him:—
XIII. Plato also appears to have brought the books of Sophron, the farce-writer,1 to Athens, which were previously neglected; and to have availed himself of them in his Speculations on Morals: and a copy of them was found under his head.
XIV. And Plato made three voyages to Sicily, first of all for the purpose of seeing the island and the craters of volcanoes, when Dionysius, the son of Hermocrates, being the tyrant of Sicily, pressed him earnestly to come and see him; and he, conversing about tyranny, and saying that that is not the best government which is advantageous for one individual alone, unless that individual is pre-eminent in virtue, had a quarrel with Dionysius, who got angry, and said, “Your words are those of an old