According to the normativist, it is built into the nature of belief itself that beliefs are subject to a certain set of norms.

What makes certain mental states subject to evaluation with respect to norms of rationality and justification, and others arational? In this paper, I develop and defend an account that explains why belief is governed by, and so appropriately subject to, evaluation with respect to norms of rationality and justification, one that does justice to the complexity of our evaluative practice in this domain. Then, I sketch out a way of extending the account to explain when and why other kinds of mental states are rationally evaluable. I argue that the cognitive or psychological mechanisms that give rise to and sustain our mental states help to render our mental states appropriate targets for evaluation with respect to norms of rationality and justification when the operation of these mechanisms is responsive, in a specific way, to our judgments about which kinds of considerations constitute rationalizing and justifying reasons for being in states of the relevant sort.

Epistemic evaluation is often appropriately prescriptive in character because believers are capable of exercising some kind of control-call it doxastic control-over the way in which they regulate their beliefs. An intuitively appealing and widely endorsed account of doxastic control-the immediate causal impact account-maintains that a believer exercises doxastic control when her judgments about how she ought to regulate her beliefs in a particular set of circumstances can cause the believer to actually regulate her beliefs in those circumstances as she judges she ought to. I show here that the immediate causal impact account is ultimately untenable. Nevertheless, the immediate causal impact account gets something important about the nature of doxastic control right: exercising doxastic control involves being such that one's conception of ideal belief regulation somehow shapes the way in which one actually regulates one's beliefs. Thus, I develop here an alternative account according to which, insofar as she exercises doxastic control, a believer's conception of ideal belief regulation shapes the way in which she actually believes by exerting causal power directly on her dispositions to regulate her beliefs in certain ways. I defend this alternative against other competitors by showing that it can be extended to supply a unified account of rational control that explains evaluation with respect to the various different norms of rationality that govern the way in which we form, revise, and sustain not only our beliefs, but also our intention, hopes, fears, etc. is often appropriately prescriptive.

At least when we restrict our attention to the epistemic domain, it seems clear that only considerations which bear on whether p can render a subject’s belief that p epistemically justified, by constituting the reasons on the basis of which she believes that p. And we ought to expect any account of epistemic normativity to explain why this is so. Extant accounts generally appeal to the idea that belief aims at truth, in an effort to explain why there is a kind of evidential constraint on the sorts of considerations that can be epistemic reasons. However, there are grounds for doubting that belief, in fact, aims at truth in the way that these accounts propose. This chapter develops an alternative explanation of why it is that non-evidential considerations cannot be epistemic reasons by taking seriously the idea that the constitutive aim of belief is fundamentally action-oriented.

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