This chapter from Diogenes Laertius contains his whole biography of Socrates, written in the 3rd century CE, but drawing on earlier sources.

Socrates was the son of Sophroniscus, a sculptor, and of Phaenarete, a midwife, as we read in the Theaetetus of Plato; he was a citizen of Athens and belonged to the deme Alopece. It was thought that he helped Euripides to make his plays; hence Mnesimachus writes:

This new play of Euripides is The Phrygians; and Socrates provides the wood for frying.

And again he calls Euripides "an engine riveted by Socrates." And Callias in The Captives:

Pray why so solemn, why this lofty air?
I've every right; I'm helped by Socrates.

Aristophanes in The Clouds:

'Tis he composes for Euripides
Those clever plays, much sound and little sense.

According to some authors he was a pupil of Anaxagoras, and also of Damon, as Alexander states in his Successions of Philosophers. When Anaxagoras was condemned, he became a pupil of Archelaus the physicist; Aristoxenus asserts that Archelaus was very fond of him. Duris makes him out to have been a slave and to have been employed on stonework, and the draped figures of the Graces on the Acropolis have by some been attributed to him. Hence the passage in Timon's Silli:

From these diverged the sculptor, a prater about laws, the enchanter of Greece, inventor of subtle arguments, the sneerer who mocked at fine speeches, half-Attic in his mock humility.

He was formidable in public speaking, according to Idomeneus; moreover, as Xenophon tells us, the Thirty forbade him to teach the art of words. And Aristophanes attacks him in his plays for making the worse appear the better reason. For Favorinus in his Miscellaneous History says Socrates and his pupil Aeschines were the first to teach rhetoric; and this is confirmed by Idomeneus in his work on the Socratic circle. Again, he was the first who discoursed on the conduct of life, and the first philosopher who was tried and put to death. Aristoxenus, the son of Spintharus, says of him that he made money; he would at all events invest sums, collect the interest accruing, and then, when this was expended, put out the principal again.

Demetrius of Byzantium relates that Crito removed him from his workshop and educated him, being struck by his beauty of soul; that he discussed moral questions in the workshops and the market-place, being convinced that the study of nature is no concern of ours; and that he claimed that his inquiries embraced

Whatso'er is good or evil in an house;

that frequently, owing to his vehemence in argument, men set upon him with their fists or tore his hair out; and that for the most part he was despised and laughed at, yet bore all this ill-usage patiently. So much so that, when he had been kicked, and someone expressed surprise at his taking it so quietly, Socrates rejoined, "Should I have taken the law of a donkey, supposing that he had kicked me?" Thus far Demetrius.

Unlike most philosophers, he had no need to travel, except when required to go on an expedition. The rest of his life he stayed at home and engaged all the more keenly in argument with anyone who would converse with him, his aim being not to alter his opinion but to get at the truth. They relate that Euripides gave him the treatise of Heraclitus and asked his opinion upon it, and that his reply was, "The part I understand is excellent, and so too is, I dare say, the part I do not understand; but it needs a Delian diver to get to the bottom of it."

The Life and Opinions of Socrates

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