Abstract

McNaughton and Rawling present a view on which practical reasons are facts, such as the fact that the rubbish bin is full. This is a non-normative fact, but it is a reason for you to do something, namely take the rubbish out. They see rationality as a matter of consistency. And they see duty as neither purely a matter of rationality nor of practical reason: on the one hand, the rational sociopath is immoral; but, on the other, morality does not require that we always act on the weightiest moral reasons. McNaughton and Rawling criticize various forms of internalism, including Williams’s, and they tentatively propose a view of duty that is neither purely subjective in Prichard’s sense, nor purely objective.