founder of a sceptical school of philosophy, was the son of Pleistarchus, a native of Elis, and flourished B.C. 335, in the time of Philip the Great. He was originally a painter, but subsequently devoted himself to the study of philosophy, having been the pupil of Anaxarchus, whom he attended to India. There he became acquainted with the magi of Persia and the gymnosophists of India. On his return to Greece he acquired great renown, and was presented by the Athenians with the freedom of their city. He lived to the age of ninety. Pyrrho was the chief advocate of the sceptical school of philosophy; and from him all those who adhered to such doctrines were called Pyrrhonists. Quite groundless is the statement of the Abderite Ascanius, that he denied that it could be proved that there was anything in itself just or unjust, honourable or dishonourable. The principle of his philosophy was, that there existed no motive for belief to which one cannot oppose a doubt of equal weight. Thus he affirmed nothing, and denied nothing. Amongst his disciples were Timon of Phlius, and Nausiphanes, who taught Epicurus. The Life of Pyrrho has been written by Sextus Empiricus, and by Diogenes Laertius.