a Stoic philosopher, who flourished about c.e. 240. He was originally a boxer; and during the time he studied philosophy under Zeno he worked all night at drawing water for a gardener. When this circumstance became known to the Arcopagus, who had cited him before them to give an account of his somewhat suspicious mode of life, they decreed him a present of ten minae, which he indignantly refused. From his powers of patient endurance he was known by his fellow-pupils as the ass; but so high was their esteem for him, that on the death of Zeno he became his successor in the school. He wrote numerous treatises on topics common to the Stoic philosophers generally.