I defend the view that a reason for someone to do something is just a reason why she ought to do it. This simple view has been thought incompatible with the existence of reasons to do things that we may refrain from doing or even ought not to do. For it is widely assumed that there are reasons why we ought to do something only if we ought to do it. I present several counterexamples to this principle and reject some (...) ways of understanding "ought" so that the principle is compatible with my examples. I conclude with a hypothesis for when and why the principle should be expected to fail. (shrink)

Bernard Williams’ critique of _the morality system_, as illustrated in his reading of Aeschylus’ _Agamemnon_, is intended to show both that real moral conflicts can arise, and that a moral obligation is merely one reason among others and can be defeated by the thick concepts of a shared ethical life. In response, I want to advance two lines of argument. First, when Williams argues that a moral obligation can be the locus of moral conflict, a further step is required to (...) explain why one should feel regret for not acting on a defeated reason. Second, Williams presupposes that, when a conflict is resolved, the conclusive reason will be a thick ethical concept, but there is no compelling justification for that assumption. (shrink)

There has been a recent surge of work on deontic modality within philosophy of language. This work has put the deontic logic tradition in contact with natural language semantics, resulting in significant increase in sophistication on both ends. This chapter surveys the main motivations, achievements, and prospects of this work.