Custom and reason in Hume

by Henry E. Allison

"Henry E. Allison examines the central tenets of Hume's epistemology and cognitive psychology, as contained in the Treatise. Allison's distinguishing feature is a two level approach. On the one hand, he considers Hume's thought in its own terms and historical context. So considered, Hume is viewed as a naturalist, whose project in the first three parts of the first book of the Treatise is to provide an account of the operation of the understanding in which reason is subordinated to custom and other non-rational propensities. Scepticism arises in the fourth part as a form of metascepticism, directed not against first-order beliefs, but against philosophical attempts to ground these beliefs in the 'space of reasons'. On the other hand, he provides a critique of these tenets from a Kantian perspective. This involves a comparison of the two thinkers on a range of issues, including space and time, causation, existence, induction, and the self. In each case, the issue is seen to turn on a co