Richard Moran’s theory of first-person authority as the agential authority to make up one’s own mind rests on a form of mind-body dualism that does not allow for habituation as part of normal psychological functioning. We have good intuitive and empirical reason to accept that habituation is central to the normal functioning of desire. There is some empirical support for the idea that habituation plays a parallel role in belief. In particular, at least one form of implicit bias seems better (...) understood as a case of habituated belief than as a mere association or an example of what Tamar Gendler calls ‘alief’. If there is to be genuine first-person epistemic authority over persisting mental states, therefore, an alternative account to Moran’s is required in the case of desire and perhaps in the case of belief. More generally, the neglect of habituation in recent philosophy of mind is a symptom of the need for philosophers to take the temporal structure of rational agency more seriously. (shrink)