=91.= Still another hearer of Zeno took a prominent part in political life. SPHAERUS from the Bosphorus (circ. 250 B.C.) was attracted to Cleomenes III, king of Sparta, who under his influence reintroduced the laws of Lycurgus in his city, and particularly those which referred to the education of the youth and the taking of meals in common[14]. With these he combined the plan of a monarchy after the Stoic model, in which the sovereign was to side with the poor against the rich[15]. But in 221 B.C. Cleomenes suffered a crushing defeat, and was compelled to take refuge with Ptolemy III (Euergetes), king of Egypt. Sphaerus found his way to the same court. The death of Ptolemy III left Cleomenes in the position of a disregarded suppliant[16]; but Sphaerus appears to have found a congenial home in Alexandria, now the centre of Hellenistic learning, and doubtless introduced the Stoic philosophy in the circle that gathered round the Museum[17]. He gained a special reputation by the excellence of his definitions[18]. From an anecdote related of him we must infer that whilst adhering to Zeno’s doctrine that the wise man will not opine, he accepted reasonable assurance (τὸ εὔλογον) as a sufficient guide in daily life[19]. He appears to have laid special stress upon the unity of virtue, maintaining that the separate virtues are but appearances of virtue or knowledge in different spheres of action[20]. [Sidenote: Herillus.] =92.= HERILLUS of Carthage (circ. 250 B.C.) is frequently referred to by Cicero as teaching doctrines hardly distinguishable from those of the Academy, in that he made knowledge the highest good[21], and taught that separate from it, yet with claims of their own, there existed inferior ends of action (ὑποτελίδες)[22]. It does not, however, appear clearly that he differed much from Zeno. Sphaerus, as we have seen, had defined the virtues as being ‘knowledge displayed in different spheres of action,’ and the aim of Herillus, ‘to live according to the standard of life accompanied by knowledge[23],’ points in the direction of practical rather than of speculative wisdom. His ‘subordinate aims’ appear also to correspond with Zeno’s ‘things of high degree’ (προηγμένα), and are defined as being the first states to which an animal is attracted upon birth, as food, life, strength (πρῶτα κατὰ φύσιν)[24]; they serve only for ‘ends’ (τέλη) for men who have not yet attained to wisdom[25]. This doctrine corresponds closely to the Stoic doctrine as developed somewhat later[26]. [Sidenote: Aristo.] =93.= ARISTO of Chios (circ. 250 B.C.) departed more decidedly from Zeno’s teaching, falling back generally on Cynic views. He was no favourite of Zeno, who called him a chatterbox[27]: and in later life he was accused of becoming a flatterer of Persaeus when the latter was in power[28], and of luxury in his personal habits[29]. But his success as a teacher was great, and he formed a body of followers who called themselves Aristonians.