LIFE OF HIPPASUS.
I. Hippasus was a citizen of Metapontum, and a pupil of Pythagoras.
II. He used to say that the time of the changes of the world was definite, and that the universe also was finite, and in a state of perpetual motion.
III. Demetrius, in his treatise on People of the same Name, says that he left no writings behind him.
IV. There were two people of the name of Hippasus; this man, and another who wrote an account of the Constitution of the Lacedæmonians, in five books. And he was himself a Lacedæmonian.