Logic IV. 139
530 B.C., which seems to explain [well?] the facts known to us then when Socrates was twenty, (which seems to be what is meant by Plato when he makes him "very young" yet older than the Aristotle of the dialogue, who seems to be no boy,) that is 449 B.C., he would have been 81 years old, which would explain why Plato felt called upon to make him look so much older than the age of 65 which he assigns to him so as to approximate to his own age. In this case the meeting between Socrates and Parmenides, if it took place at all, probably occured when Socrates was a lad; for Parmenides would hardly have undertaken the voyage when he was more than eighty years old. There having been no Aristotle, Socrates at some time in his boyhood may have seen Parmenides. This would explain how Plato came to get such an impression of his awful appearance. But if Parmenides was born about the 69th Olympiad, when Diogenes says he flourished, which is the only other hypothesis that seesm to me worth considering, then when Socrates was twenty, he was really only fifty or fifty five years old; and Plato's representing him as looking so very old would have to be explained by its being a historical fact, though a somewhat irrelevant one; and still the age of 65 would remain ficticious. [If?] one suppose that Parmenides was really 65 when Socrates was 20, he would have
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