 Besides his contempt for convention, what is most noteworthy about Diogenes as a moral teacher is his emphasis on detachment from those things most people consider good. In this emphasis, Diogenes seems to have intensified a tendency found in Socrates. Certainly Socrates could be heedless of convention and careless about providing for his bodily needs. To Plato, however, Diogenes seemed to be Socrates gone mad (DL VI 54). Still, in Diogenes’ attitude, we can see at least the beginning of the idea that the end of life is a psychological state marked by detachment. Counseling the simple and uncomplicated satisfaction of one’s natural instincts and desires, Diogenes urges detachment from those things held out by convention to be good. While he is not so explicit, others develop the theme of detachment into the notion of tranquility. The Stoics and Epicureans hold that happiness depends on detachment from vulnerable or difficult to obtain bodily and external goods and consists in a psychological state more under one’s own direct control. In this way, happiness becomes associated (for the Epicureans) with tranquility (ataraxia). Finally, in Skepticism, suspension of judgment is a kind of epistemic detachment that provides tranquility. So in Diogenes we find the beginnings of an idea that will become central to later ancient moral theory.