Philip Stratton-Lake

According to one formulation of Scanlon’s contractualist principle, certain acts are wrong if they are permitted by principles that are reasonably rejectable because they permit such acts. According to the redundancy objection, if a principle is reasonably rejectable because it permits actions which have feature F, such actions are wrong simply in virtue of having F and not because their having F makes principles permitting them reasonably rejectable. Consequently Scanlon’s contractualist principle adds nothing to the reasons we have not to act wrongly and is redundant.

Ethical intuitionists are often criticised on the ground that their view makes it possible for an agent to believe that she ought to ? whilst lacking any motive to ?-that is, on the ground that it involves, or implies a form of externalism. I begin by distinguishing this form of externalism (what I call 'belief externalism') from two other forms of ethical externalism-moral externalism, and reasons externalism. I then consider various reasons why one might think that ethical intuitionism is defective in so far as it involves, or implies belief externalism, and argue that these objections are unpersuasive