Abstract

Philosophical tradition sharply distinguishes the conditions under which belief and action are reasonable. This dissertation examines one attempt to sustain this division, namely, the Humean analysis of practical reasons. The Humean analysis divides practical reasons into end and means. The former concerns what one should pursue as goal. The latter, what one should do to realize one's ends. Humeans argue that end reasons are not subject to the conditions of reasonable belief. Since end reasons pick out what has value for an agent, Humeans contend that what makes life meaningful lies largely outside epistemic criteria. I find that Humeans base this claim on two distinct arguments. Each assumes that end reasons are unfit for epistemic appraisal because they lack some feature owned by psychological states suited to epistemic appraisal. A psychological state is fit for epistemic assessment only if its attitude ascribes a truth value to its content and its content owns a truth value. I examine the first conjunct. Regarding , Humeans argue that all genuine end reasons move their agents and, thus, these reasons are wants or take wants as components, since desire is the only source of agent-motivation. But in desiring that p, one does not ascribe a truth-value to p. Thus, end reasons lie outside epistemic criteria, assuming that only those psychological states whose attitude ascribes a truth value to its content are fit for epistemic assessment. Among those who claim that end reasons are a type of conative psychological state in that all genuine end reasons must move their agents are: R. M. Hare, P. H. Nowell-Smith, Gilbert Harman, Donald Davidson, B. A. O. Williams, and Daniel Dennett. I argue that this appeal to motivation fails by examining when an actor is an agent, finding that these conditions do not require that all genuine end reasons motivate. I add that rational failings, such as weakness of will, strongly suggest that not all genuine end reasons motivate. I conclude that end reasons are best conceived as a type of belief and, thus, these reasons do not lie outside epistemic assessment due to their psychological attitude