Greek Texts & Translations

1.1.23 After engaging in politics he became a student of nature. According to some he left nothing in writing; for the Nautical Astronomy ^note attributed to him is said to be by Phocus of Samos. Callimachus knows him as the discoverer of the Ursa Minor; for he says in his Iambics:

Who first of men the course made plain

Of those small stars we call the Wain,

Whereby Phoenicians sail the main. ^note.

But according to others he wrote nothing but two treatises, one On the Solstice and one On the Equinox, regarding all other matters as incognizable. He seems by some accounts to have been the first to study astronomy, ^note, the first to predict eclipses of the sun and to fix the solstices; so Eudemus in his History of Astronomy. It was this which gained for him the admiration of Xenophanes and Herodotus and the notice of Heraclitus and Democritus.

And some, including Choerilus the poet, declare that he was the first to maintain the immortality of the soul. He was the first to determine the sun's course from solstice to solstice, and according to some the first to declare the size of the sun to be one seven hundred and twentieth part of the solar circle, and the size of the moon to be the same fraction of the lunar circle. He was the first to give the last day of the month the name of Thirtieth, and the first, some say, to discuss physical problems.

Aristotle ^note and Hippias affirm that, arguing from the magnet and from amber, he attributed a soul or life even to inanimate objects. Pamphila states that, having learnt geometry from the Egyptians, he was the first to inscribe a right-angled triangle in a circle, whereupon he sacrificed an ox. 1.1.25 Others tell this tale of Pythagoras, amongst them Apollodorus the arithmetician. (It was Pythagoras who developed to their furthest extent the discoveries attributed by Callimachus in his Iambics to Euphorbus the Phrygian, I mean "scalene triangles" and whatever else has to do with theoretical geometry. ^note)

Thales is also credited with having given excellent advice on political matters. For instance, when Croesus sent to Miletus offering terms of alliance, he frustrated the plan; and this proved the salvation of the city when Cyrus obtained the victory. Heraclides makes Thales himself ^note say that he had always lived in solitude as a private individual and kept aloof from State affairs. 1.1.26 Some authorities say that he married and had a son Cybisthus; others that he remained unmarried and adopted his sister's son, and that when he was asked why he had no children of his own he replied "because he loved children." The story is told that, when his mother tried to force him to marry, he replied it was too soon, and when she pressed him again later in life, he replied that it was too late. Hieronymus of Rhodes in the second book of his Scattered Notes relates that, in order to show how easy it is to grow rich, Thales, foreseeing that it would be a good season for olives, rented all the oil-mills and thus amassed a fortune. ^note

1.1.27 His doctrine was that water is the universal primary substance, and that the world is animate and full of divinities. He is said to have discovered the seasons of the year and divided it into 365 days.

He had no instructor, except that he went to Egypt and spent some time with the priests there. Hieronymus informs us that he measured the height of the pyramids by the shadow they cast, taking the observation at the hour when our shadow is of the same length as ourselves. He lived, as Minyas relates, with Thrasybulus, the tyrant of Miletus.

The well-known story of the tripod found by the fishermen and sent by the people of Miletus to all the Wise Men in succession runs as follows. 1.1.28 Certain Ionian youths having purchased of the Milesian fishermen their catch of fish, a dispute arose over the tripod which had formed part of the catch. Finally the Milesians referred the question to Delphi, and the god gave an oracle in this form ^note:

Who shall possess the tripod? Thus replies

Apollo: "Whosoever is most wise." ^note

Accordingly they give it to Thales, and he to another, and so on till it comes to Solon, who, with the remark that the god was the most wise, sent it off to Delphi. Callimachus in his Iambics has a different version of the story, which he took from Maeandrius of Miletus. ^note It is that Bathycles, an Arcadian, left at his death a bowl with the solemn injunction that it "should be given to him who had done most good by his wisdom." So it was given to Thales, went the round of all the sages, and came back to Thales again.