I am rather inclined to pleasure: I will incline to the contrary side above measure for the sake of exercise. I am averse to pain: I will rub and exercise against this the appearances which are presented to me for the purpose of withdrawing my aversion from every such thing. For who is a practitioner in exercise? He who practices not using his desire, and applies his aversion only to things which are within the power of his will, and practices most in the things which are difficult to conquer. For this reason one man must practice himself more against one thing and another against another thing. What, then, is it to the purpose to set up a palm tree, or to carry about a tent of skins, or a mortar and a pestle? Practice, man, if you are irritable, to endure if you are abused, not to be vexed if you are treated with dishonour. Then you will make so much progress that, even if a man strikes you, you will say to yourself, "Imagine that you have embraced a statue": then also exercise yourself to use wine properly so as not to drink much, for in this also there are men who foolishly practice themselves; but first of all you should abstain from it, and abstain from a young girl and dainty cakes. Then at last, if occasion presents itself, for the purpose of trying yourself at a proper time, you will descend into the arena to know if appearances overpower you as they did formerly. But at first fly far from that which is stronger than yourself: the contest is unequal between a charming young girl and a beginner in philosophy. "The earthen pitcher," as the saying is, "and the rock do not agree."
After the desire and the aversion comes the second topic of the movements toward action and the withdrawals from it; that you may be obedient to reason, that you do nothing out of season or place, or contrary to any propriety of the kind. The third topic concerns the assents, which is related to the things which are persuasive and attractive. For as Socrates said, "we ought not to live a life without examination," so we ought not to accept an appearance without examination, but we should say, "Wait, let me see what you are and whence you come"; like the watch at night, "Show me the pass." "Have you the signal from nature which the appearance that may be accepted ought to have?" And finally whatever means are applied to the body by those who exercise it, if they tend in any way toward desire and it, aversion, they also may be fit means of exercise; but if they are for display, they are the indications of one who has turned himself toward something external, and who is hunting for something else, and who looks for spectators who will say, "Oh the great man." For this reason, Apollonius said well, "When you intend to exercise yourself for your own advantage, and you are thirsty from heat, take in a mouthful of cold water, and spit it out, and tell nobody."