Abstract
It has become common to take reasons to form a basic normative category that is not amenable to non-circular analysis. This paper offers a novel characterization of reasons in terms of how we ought or it would be good for us to think in response to our awareness of facts, and thus rejects such Reason Primitivism. Briefly, for r to be a normative reason for A to φ is for it to be the case that A ought to conduct her φ-relevant thinking in a φ-friendly manner, given her awareness of r. In mechanistic terms, this is to say that the psychological mechanisms responsible for A’s potentially φ-ing ought to be causally influenced in the direction of φ-ing by her awareness of r. For r to be an evaluative reason for A to φ is for it to be the case that it is desirable for A to conduct her φ-relevant thinking in a more or less φ-friendly manner, given her awareness of r. What someone ought to do or what it is desirable for someone to do is in turn to be understood in terms of fittingness of different positive or negative reactions. Linking the favoring relation between a fact and an action or belief explicitly with fittingness of attitudes towards the subject reveals the sense in which reasons are normative or evaluative. The paper also responds to six potential challenges to the view and argues it has certain advantages over competing reductionist proposals