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Philolaus

This webpage reproduces one of the
Lives of the Eminent Philosophers

by
Diogenes Laërtius

published in the Loeb Classical Library, 1925

The text is in the public domain.

This page has been carefully proofread
and I believe it to be free of errors.
If you find a mistake though,
please let me know!

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Heraclitus

(Vol. II) Diogenes Laërtius
Lives of the Eminent Philosophers

Book VIII

 p401  Chapter 8
Eudoxus (c. 407‑357 B.C.)

[link to original Greek text] 86 Eudoxus of Cnidos, the son of Aeschines, was an astronomer, a geometer, a physician and a legislator. He learned geometry from Archytas and medicine from Philistion the Sicilian, as Callimachus tells us in his Tables. Sotion in his Successions of Philosophers says that he was also a pupil of Plato. When he was about twenty-three years old and in straitened circumstances, he was attracted by the reputation of the Socratics and set sail for Athens with Theomedon the physician, who provided for his wants. Some even say that he was Theomedon's favourite. Having disembarked at Piraeus he went up every day to Athens and, when he had attended the sophists' lectures, returned again to the port.a [link to original Greek text] 87 After spending two months there, he went home and, aided by the liberality of his friends, he proceeded to Egypt with Chrysippus the physician, bearing with him letters of introduction from Agesilaus  p403 to Nectanabis, who recommended him to the priests. There he remained one year and four months with his beard and eyebrows shaved, and there, some say, he wrote his Octaëteris. From there he went to Cyzicus and the Propontis, giving lectures; afterwards he came to the court of Mausolus. Then at length he returned to Athens, bringing with him a great number of pupils: according to some, this was for the purpose of annoying Plato, who had originally passed him over.1 [link to original Greek text] 88 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.2 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.

He had three daughters, Actis, Philtis and Delphis. [link to original Greek text] 89 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,  p405 while in medicine he was the pupil of Philistion the Sicilian.

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.

[link to original Greek text] 90 Three men have borne the name of Eudoxus: (1) our present subject; (2) a historian, of Rhodes; (3) a Sicilian Greek, the son of Agathocles, a comic poet, who three times won the prize in the city Dionysia and five times at the Lenaea, so we are told by Apollodorus in his Chronology. We also find another physician of Cnidos mentioned by Eudoxus3 in his Geography as advising people to be always exercising their limbs by every form of gymnastics, and their sense-organs in the same way.

The same authority, Apollodorus, states that Eudoxus of Cnidos flourished about the 103rd Olympiad,4 and that he discovered the properties of curves. He died in his fifty-third year. When he was in Egypt with Chonuphis of Heliopolis, the sacred bull Apis licked his cloak. From this the priests foretold that he would be famous but short-lived, so we are informed by Favorinus in his Memorabilia.

[link to original Greek text] 91 There is a poem of our own upon him, which runs thus:5

It is said that at Memphis Eudoxus learned his coming fate from the bull with beautiful horns. No words did it utter; for whence comes speech to a bull? Nature did not  p407 provide the young bull Apis with a chattering tongue. But, standing sideways by him, it licked his robe, by which it plainly prophesied "you shall soon die." Whereupon, soon after, this fate overtook him, when he had seen fifty-three risings of the Pleiades.

Eudoxus used to be called Endoxos (illustrious) instead of Eudoxus by reason of his brilliant reputation.

Having now dealt with the famous Pythagoreans, let us next discuss the so‑called "sporadic" philosophers. And first we must speak of Heraclitus.


The Loeb Editor's Notes:

1 The suggestion of hostile relations is held to be without foundation both by Tannery, Astronomie ancienne, p296, note 4, and T. L. Heath, Aristarchus, p192.

2 The reference is to the Nicomachean Ethics of Aristotle (I.12, 1101b27; X.2, 1172b9 sq.). That Nicomachus wrote the treatise called after him was a common error into which Cicero also fell (De fin. V § 12).

3 The wording suggests that this physician's name was not Eudoxus, but rather Chrysippus. He may have been the Chrysippus of Cnidos mentioned supra, VII.186 (cf. Wilamowitz, Antig. v. Kar. 324‑326); see, however, Pauly-Wissowa, s.v. Chrysippos, 15 and 16.

4 368‑364 B.C.

5 Anth. Pal. VII.744.


Thayer's Note:

a Notable because it's something like an 8‑km walk each way.


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Page updated: 5 Mar 18