Can the question "Why do what morality requires?" be answered in such a way that anyone regardless of their desires or interests has reason to be moral? One strategy for answering this question appeals to constitutive arguments. In general, constitutive arguments attempt to establish the normativity of rational requirements by pointing out that we are already committed to them insofar as we are believers or agents. This study is concerned with the general prospects for such arguments. It starts by explaining (...) the general constitutive argument strategy, followed by an examination of constitutive arguments that have been given regarding theoretical reason and the instrumental principle in practical reason, and concluding with a discussion of some challenges to constitutive arguments in moral philosophy and some possible responses to these challenges. (shrink)

A definitive feature of Kant's moral philosophy is its rationalism. Kant insists that moral theory, at least at its foundation, cannot take account of empirical facts about human beings and their circumstances in the world. This is the core of Kant's commitment to ‘metaphysics of morals’, and it is what he sees as his greatest contribution to moral philosophy. The paper clarifies what it means to be committed to metaphysics of morals, why Kant is committed to it, and where he (...) thinks empirical considerations may enter moral theory. The paper examines recent work of contemporary Kantians who argue that there is a central role for empirical considerations in Kant's moral theory. Either these theorists interpret Kant himself as permitting empirical considerations to enter, or they propose to extend Kant's theory so as to allow them to enter. With some qualifications, I argue that these interpretive trends are not supported by the texts, and that the proposed extensions are not plausibly Kantian. Kant's insistence on the exclusion of empirical considerations from the foundations of moral theory is not an incidental feature of his thought which might be modified while the rest remains unchanged. Rather, it is the very centre of his endeavours in moral philosophy. If we disagree with it, I argue, we have grounds for moving to a distinctly different theoretical framework. (shrink)

In The Sources of Normativity Korsgaard introduces her conception of practical identities understood as the source of moral obligations. This conception forms a point of transition from Korsgaard’s theory of action to her solution to the problem of the authority of moral norms. In order to describe how universal categorical reasoning is compatible with the moral content of particular practical decisions, Korsgaard needs to show how our contingent practical identities can be reconciled with what she defines as the universally shared (...) identity that expresses our humanity. To make this reconciliation work, she devises an argument for the public shareability of reasons amended by her reinterpretation of the Kantian as if principle. I suggest that, in doing so, Korsgaard steps too far away from Kant’s architectonic approach to the question of why moral norms bind us, and that, consequently, the Korsgaardian reconciliation between the two kinds of identities, as it stands, cannot be accomplished. (shrink)

The conception of two kinds of practical identities, which Korsgaard introduces in the Sources of Normativity, helps her explain how universal categorical reasoning is compatible with the moral content of individual practical decisions. Based on this conception, she devises an interpretation of the Kantian as if principle amended by her argument for the public shareability of reasons. I suggest that, in doing so, Korsgaard steps too far away from Kant’s architectonic approach to the question of why moral norms bind us, (...) and that, as a result, the Korsgaardian explanation, as it stands, cannot be accomplished. (shrink)

There is a fairly widespread—and very infl uential—hope among philosophers interested in the status of normativity that the solution to our metaethical and, more generally, metanormative problems will emerge from the philosophy of action. In this essay, I will argue that these hopes are groundless. I will focus on the metanormative hope, but—as will become clear—showing that the solution to our metanormative problems will not come from what is constitutive of action will also devastate the hope of gaining significant insight (...) into first-order, normative truths by focusing on what is constitutive of action. (shrink)

For many epistemologists and normativity theorists, epistemic norms necessarily entail normative reasons. Why or in virtue of what do epistemic norms have this necessary normative authority? According to what I call epistemic constitutivism, it is ultimately because belief constitutively aims at truth. In this paper, I examine various versions of the aim of belief thesis and argue that none of them can plausibly ground the normative authority of epistemic norms. I conclude that epistemic constitutivism is not a promising strategy for (...) grounding epistemic normativity. (shrink)