Chapter XV.—Socrates; His Philosophy Reproduced by Plato.
Socrates, then, was a hearer of Archelaus, the natural philosopher; and he, reverencing the rule, “Know thyself,” and having assembled a large school, had Plato (there), who was far superior to all his pupils. (Socrates) himself left no writings89 Or, “writing.” Still Socrates may be called the father of the Greek philosophy. “From the age of Aristotle and Plato, the rise of the several Greek sects may be estimated as so many successful or abortive efforts to carry out the principles enunciated by Socrates.”—Translator’s Treatise on Metaphysics, chap. iii. p. 45. after him. Plato, however, taking notes90 This word signifies to take impressions from anything, which justifies the translation, historically correct, given above. Its literal import is “wipe clean,” and in this sense Hippolytus may intend to assert that Plato wholly appropriated the philosophy of Socrates. (See Diogenes Laertius, xi. 61, where the same word occurs.) of all his (lectures on) wisdom, established a school, combining together natural, ethical, (and) logical (philosophy). But the points Plato determined are these following.
[18] Ὁ μὲν οὖν Σωκράτης γίνεται Ἀρχελάου τοῦ φυσικοῦ ἀκροατής: ὃς τὸ «γνῶθι σαυτὸν» προτιμήσας καὶ μεγάλην σχολὴν συστήσας ἔσχε πάντων τῶν μαθητῶν ἱκανώτατον τὸν Πλάτωνα, αὐτὸς μὲν μηδὲ[ν] σύγγραμμα καταλιπών: ὁ δὲ Πλάτων τὴν πᾶσαν αὐτοῦ σοφίαν ἀπομαξάμενος συνέστησε τὸ διδασκαλεῖον μίξας ὁμοῦ φυσικὴν ἠθικὴν διαλεκτικήν. ἃ δὲ ὁ Πλάτων ὁρίζει, ἐστὶ ταῦτα.