 To the extent that we are autonomous, in a familiar sense of that term, we pursue what we need, and we aim to realize our values. Yet each of us has a tendency to fail to be resolute in this pursuit, to succumb to temptation by immediate pleasures, to fail to give enough weight to future goods or to present risks. This is a generic problem, the “problem of autonomy”, and we do better at coping with it if we subscribe to a standard or a norm requiring us, roughly, to efficiently pursue what we need and value. If our psychology and our strivings are well regulated by such a norm, we are “rational”, and we enhance our autonomy.