Derek Parfit presents the third volume of On What Matters, his landmark work of moral philosophy. Parfit develops further his influential treatment of reasons, normativity, the meaning of moral discourse, and the status of morality. He engages with his critics, and shows the way to resolution of their differences.

Ethical concepts are, or purport to be, normative. They make claims on us: they command, oblige, recommend, or guide. Or at least when we invoke them, we make claims on one another; but where does their authority over us - or ours over one another - come from? Christine Korsgaard identifies four accounts of the source of normativity that have been advocated by modern moral philosophers: voluntarism, realism, reflective endorsement, and the appeal to autonomy. She traces their history, showing how (...) each developed in response to the prior one and comparing their early versions with those on the contemporary philosophical scene. Kant's theory that normativity springs from our own autonomy emerges as a synthesis of the other three, and Korsgaard concludes with her own version of the Kantian account. Her discussion is followed by commentary from G. A. Cohen, Raymond Geuss, Thomas Nagel, and Bernard Williams, and a reply by Korsgaard. (shrink)

In this paper, we argue for a particular informative and unified analysis of normative reasons. According to this analysis, a fact F is a reason to act in a certain way just in case it is evidence that one ought to act in that way. Similarly, F is a reason to believe a certain proposition just in case it is evidence for the truth of this proposition. Putting the relatively uncontroversial claim about reasons for belief to one side, we present (...) several arguments in favor of our analysis of reasons for action. We then turn to consider a series of objections to the analysis. We conclude that there are good reasons to accept the analysis and that the objections do not succeed. (shrink)

Hilary Kornblith presents a new account of mental reflection, and its importance for knowledge, reasoning, freedom, and normativity. He argues that reflection cannot solve the philosophical problems it has traditionally been thought to, and offers a more realistic, demystified view of its nature which draws on dual process approaches to cognition.

What are our duties or rights? How should we act? What are we responsible for? Joseph Raz examines the philosophical issues underlying these everyday questions. He explores the nature of normativity--the reasoning behind certain beliefs and emotions about how we should behave--and offers a novel account of responsibility.

Many philosophers have sought to account for doxastic and epistemic norms by supposing that belief ‘aims at truth.’ A central challenge for this approach is to articulate a version of the truth-aim that is at once weak enough to be compatible with the many truth-independent influences on belief formation, and strong enough to explain the relevant norms in the desired way. One phenomenon in particular has seemed to require a relatively strong construal of the truth-aim thesis, namely ‘transparency’ in doxastic (...) deliberation. In this paper, I argue that the debate over transparency has been in the grip of a false presupposition, namely that the phenomenon must be explained in terms of being a feature of deliberation framed by the concept of belief. Giving up this presupposition makes it possible to adopt weaker and more plausible versions of the truth-aim thesis in accounting for doxastic and epistemic norms. (shrink)