Book 8
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Some say that, when Plato gave a banquet, Eudoxus, owing to the numbers present, introduced the fashion of arranging couches in a semicircle. Nicomachus, the son of Aristotle, states that he declared pleasure to be the good.The reference is to the Nicomachean Ethics of Aristotle (i. 12, 1101 b 27; x. 2, 1172 b 9 sq.). That Nicomachus wrote the treatise called after him was a common error into which Cicero also fell (De fin. v. § 12).He was received in his native city with great honour, proof of this being the decree concerning him. But he also became famous throughout Greece, as legislator for his fellow-citizens, so we learn from Hermippus in his fourth book On the Seven Sages, and as the author of astronomical and geometrical treatises and other important works.
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He had three daughters, Actis, Philtis and Delphis.
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Eratosthenes in his writings addressed to Baton tells us that he also composed Dialogues of Dogs; others say that they were written by Egyptians in their own language and that he translated them and published them in Greece. Chrysippus of Cnidos, the son of Erineus, attended his lectures on the gods, the world, and the phenomena of the heavens, while in medicine he was the pupil of Philistion the Sicilian.
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Eudoxus also left some excellent commentaries. He had a son Aristagoras, who had a son Chrysippus, the pupil of Aëthlius. To this Chrysippus we owe a medical work on the treatment of the eye, speculations upon nature having occupied his mind.
