He makes no appeal to unselfishness, he holds that self-seeking, in some sense, and more particularly self-preservation, govern all human behavior. But his conception of what a wise man will choose as the goal of his self-seeking is different from that of an ordinary egoist. Emotions are called passions when they spring from inadequate ideas; passions in different men may conflict, but men who live in obedience to reason will agree together.p. 573.

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