When he had finished, he proposed to Onesicritus, if he wished to hear his discourse, to strip off his clothes, to lie down naked by him on the same stones, and in that manner to listen to him; while he was hesitating what to do, Mandanis,[397] who was the oldest and wisest of the sophists, reproached Calanus for his insolence, although he censured such insolence himself. Mandanis called Onesicritus to him, and said, I commend the king, because, although he governs so large an empire, he is yet desirous of acquiring wisdom, for he is the only philosopher in arms that I ever saw; it would be of the greatest advantage, if those were philosophers who have the power of persuading the willing and of compelling the unwilling to learn temperance; but I am entitled to indulgence, if, when conversing by means of three interpreters, who, except the language, know no more than the vulgar, I am not [CAS. 716] able to demonstrate the utility of philosophy. To attempt it is to expect water to flow pure through mud. 65. “The tendency of his discourse,” he said, “was this, that the best philosophy was that which liberated the mind from pleasure and grief; that grief differed from labour, in that the former was inimical, the latter friendly to men; for that men exercised their bodies with labour in order to strengthen the mental powers, by which means they would be able to put an end to dissensions, and give good counsel to all, to the public and to individuals; that he certainly should at present advise Taxiles to receive Alexander as a friend; for if he entertained a person better than himself, he might be improved; but if a worse person, he might dispose him to good.”