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Logic IV. 137
later than the death of Socrates,] for some say he was [past?] 60 years old when he died." We can only suppose the last [was?] some Transcriber's error. That he was seventy yeras old is asserted in the Crito (52E). Over seventy is his assertion in the Apology. The year of his death is further fixed by a circumstance which I will not take the space to explain. We may, then, set it down as certain for our purpose that Socrates was born 469 B.C.

As to Parmenides, we begin with the only statement approaching exactitude, which is that of Diogenes Laertius that he "flourished about the sixty-ninth Olympiad." That means he was born about the 59th or from 544 B.C. to 540 B.C. But since Diogenes gives no authority as is his want, we must suppose that he had no particular authority; and he probably merely meant, or was as somebody who meath, that his book [Greek?] or whatever its title was, was written about that time. It is singular that Diogenes, with his knowledge of books, merely speaks vaguely of "his [illegible?]." Now this book, judging from the fragments and other infor--