Both Plato and Aristotle criticize the simple sophistic picture of human desires.

Both Plato and Aristotle criticize the simple sophistic picture of human desires. We have to ask not only what we do now in fact happen to want, but what in the long run and fundamentally we want to want. And this implies a picture of man, made explicit, in different ways, in both Plato and Aristotle, in which certain satisfactions are objectively higher than others. The use of the word objectively implies the existence of an impersonal, unchosen criterion. What is it?

That there is some such criterion follows from treating the question, What is the good…