the Cittiæan, that there were eight Zenos; but this one flourished about the seventy-ninth olympiad.
LIFE OF LEUCIPPUS.
I. Leucippus was a native of Velia, but, as some say, of Abdera; and, as others report, of Melos.
II. He was a pupil of Zeno. And his principal doctrines were, that all things were infinite, and were interchanged with one another; and that the universe was a vacuum, and full of bodies; also that the worlds were produced by bodies falling into the vacuum, and becoming entangled with one another; and that the nature of the stars originated in motion, according to their increase; also, that the sun is borne round in a greater circle around the moon; that the earth is carried on revolving round the centre; and that its figure resembles a drum; he was the first philosopher who spoke of atoms as principles.
III. These are his doctrines in general; in particular detail, they are as follow: he says that the universe is infinite,