Greek Texts & Translations

He is said to have been twenty years old at the invasion of Xerxes and to have lived seventy-two years. Apollodorus in his Chronology says that he was born in the 70th Olympiad, ^note and died in the first year of the 88th Olympiad. ^note He began to study philosophy at Athens in the archonship of Callias ^note when he was twenty; Demetrius of Phalerum states this in his list of archons; and at Athens they say he remained for thirty years.

He declared the sun to be a mass of red-hot metal and to be larger than the Peloponnesus, though others ascribe this view to Tantalus; he declared that there were dwellings on the moon, and moreover hills and ravines. He took as his principles the homoeomeries or homogeneous molecules; for just as gold consists of fine particles which are called gold-dust, so he held the whole universe to be compounded of minute bodies having parts homogeneous to themselves. His moving principle was Mind; of bodies, he said, some, like earth, were heavy, occupying the region below, others, light like fire, held the region above, while water and air were intermediate in position. For in this way over the earth, which is flat, the sea sinks down after the moisture has been evaporated by the sun. 2.3.9 In the beginning the stars moved in the sky as in a revolving dome, so that the celestial pole which is always visible was vertically overhead; but subsequently the pole took its inclined position. He held the Milky Way to be a reflection of the light of stars which are not shone upon by the sun; comets to be a conjunction of planets which emit flames; shooting-stars to be a sort of sparks thrown off by the air. He held that winds arise when the air is rarefied by the sun's heat; that thunder is a clashing together of the clouds, lightning their violent friction; an earthquake a subsidence of air into the earth.

Animals were produced from moisture, heat, and an earthy substance; later the species were propagated by generation from one another, males from the right side, females from the left.

There is a story that he predicted the fall of the meteoric stone at Aegospotami, which he said would fall from the sun. ^note Hence Euripides, who was his pupil, in the Phathon calls the sun itself a "golden clod." ^note Furthermore, when he went to Olympia, he sat down wrapped in a sheep-skin cloak as if it were going to rain; and the rain came. When some one asked him if the hills at Lampsacus would ever become sea, he replied, "Yes, it only needs time." Being asked to what end he had been born, he replied, "To study sun and moon and heavens." To one who inquired, "You miss the society of the Athenians?" his reply was, "Not I, but they miss mine." When he saw the tomb of Mausolus, he said, "A costly tomb is an image of an estate turned into stone." ^note 2.3.11 To one who complained that he was dying in a foreign land, his answer was, "The descent to Hades is much the same from whatever place we start."

Favorinus in his Miscellaneous History says Anaxagoras was the first to maintain that Homer in his poems treats of virtue and justice, and that this thesis was defended at greater length by his friend Metrodorus of Lampsacus, who was the first to busy himself with Homer's physical doctrine. Anaxagoras was also the first to publish a book with diagrams. ^note Silenus ^note in the first book of his History gives the archonship of Demylus ^note as the date when the meteoric stone fell, 2.3.12 and says that Anaxagoras declared the whole firmament to be made of stones; that the rapidity of rotation caused it to cohere; and that if this were relaxed it would fall. ^note

Of the trial of Anaxagoras different accounts are given. Sotion in his Succession of the Philosophers says that he was indicted by Cleon on a charge of impiety, because he declared the sun to be a mass of red-hot metal; that his pupil Pericles defended him, and he was fined five talents and banished. Satyrus in his Lives says that the prosecutor was Thucydides, the opponent of Pericles, and the charge one of treasonable correspondence with Persia as well as of impiety; and that sentence of death was passed on Anaxagoras by default.