Most philosophers assume (often without argument) that belief is a mental state. Call their view the orthodoxy. In a pair of recent papers, Matthew Boyle has argued that the orthodoxy is mistaken: belief is not a state but (as I like to put it) an act of reason. I argue here that at least part of his disagreement with the orthodoxy rests on an equivocation. For to say that belief is an act of reason might mean either (i) that it’s (...) an actualization of its subject’s rational capacities or (ii) that it’s a rational activity (hence, a certain kind of event). And, though belief is not an act of reason in the second sense, it may nonetheless be one in the first: it may be a static actualization of its subject’s rational capacities. (shrink)

Kant describes the understanding as a faculty of spontaneity. What this means is that our capacity to judge what is true is responsible for its own exercises, which is to say that we issue our judgments for ourselves. To issue our judgments for ourselves is to be self-conscious – i.e., conscious of the grounds upon which we judge. To grasp the spontaneity of the understanding, then, we must grasp the self-consciousness of the understanding. I argue that what Kant requires for (...) explaining spontaneity is a conception of judgment as an intrinsic self-consciousness of the total unity of possible knowledge. This excludes what have been called ‘relative’ accounts of the spontaneity of the understanding, according to which our judgments are issued through a capacity fixed by external conditions. If so, then Kant conceives of understanding as entirely active. Or, to put it another way, he conceives of this capacity as absolutely spontaneous. (shrink)

Plausibly, an inference is an act of coming to believe something on the basis of something else you already believe. But what is it to come to believe some- thing on the basis of something else? I propose a disjunctive answer: it is either for some beliefs to rationally cause another—where rational causation is understood as causation that is either actually or potentially productive of knowledge—or for some beliefs to “deviantly” cause another, but for the believer mistakenly to come thereby (...) to believe that the former have rationally caused the latter. The result, I argue, is both a theoretically satisfying account of the act of inferring and a demonstration of the power of a knowledge-first approach to the philosophy of mind. (shrink)