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Argues for a "cognitivist" account of the instrumental principle, on which it is the application of theoretical reason to the beliefs that figure in our intentions. This doctrine is put to work in solving a puzzle about instrumental reason that plagues alternative views.

[Michael Smith] The requirements of instrumental rationality are often thought to be normative conditions on choice or intention, but this is a mistake. Instrumental rationality is best understood as a requirement of coherence on an agent's non-instrumental desires and means-end beliefs. Since only a subset of an agent's means-end beliefs concern possible actions, the connection with intention is thus more oblique. This requirement of coherence can be satisfied either locally or more globally, it may be only one among a number of such requirements on an agent's total set of desires and beliefs, and it has no special connection with reasoning. An appreciation of these facts leads to a better understanding of both the nature and the significance of instrumental rationality. /// [Edward Harcourt] I argue that the incoherence Smith claims to identify in agents who desire that q, believe that p is a necessary means to q, but fail to desire that p is illusory, since it rests on the false assumption that every property I know to be possessed by an object of my desire is an object of my desire. Though the failure of Smith's account of the irrationality of this pattern of attitudes leaves it open that the pattern is indeed irrational, I argue that there are instances of it that are not irrational where the desires are desires for what the agent knows to be impossible for him. This conclusion casts doubt on the overall strategy-that of making a Humean theory of action explanation do duty as a theory of instrumental rationality-which implies that the norms of instrumental rationality apply to desires simply as such. I then try to criticise the strategy in such a way as to leave the Humean theory of action explanation unaffected.

Normativity and the Will collects fourteen important papers on moral psychology and practical reason by R. Jay Wallace, one of the leading philosophers currently working in these areas. The papers explore the interpenetration of normative and psychological issues in a series of debates that lie at the heart of moral philosophy. Themes that are addressed include reason, desire, and the will; responsibility, identification, and emotion; and the relation between morality and other normative domains. Wallace's treatments of these topics are at once sophisticated and engaging. Taken together, they constitute an advertisement for a distinctive way of pursuing issues in moral psychology and the theory of practical reason, and they articulate and defend a unified framework for thinking about those issues. The volume also features a helpful new introduction.

Is there any distinctive aspect of rationality that deserves the label of “instrumental rationality”? Recently, Joseph Raz (2005) has argued that instrumental rationality is a “myth”. In this essay, I shall give some qualified support to Raz’s position: as I shall argue, many philosophers have indeed been seduced by certain myths about instrumental rationality. Nonetheless, Raz’s conclusion is too strong. Instrumental rationality is not itself a myth: there really is a distinctive aspect of rationality that deserves the label of “instrumental rationality”.

In the first two sections of this essay, I shall start by giving a rough intuitive description of the phenomenon that seems to me the best candidate for the label “instrumental rationality”. As we shall see, this rough description gives us reason to reject some of the myths that surround instrumental rationality. Then in the rest of this essay, I shall try to give a more precise general specification of this phenomenon. In Sections 3 and 4, I shall consider what has been said about instrumental rationality by several other philosophers. Identifying what is missing in these other philosophers’ accounts will help me to develop my own positive specification, which I shall present in Sections 5 and 6.

The rationality of means-end reasoning is the bedrock of the Humean account of practical reasons. But the normativity of such reasoning can not be taken for granted. I consider and reject the idea that the normativity of instrumental reasoning can be explained – either in terms of its being constitutive of the very notion of having an end, or solely in terms of instrumental considerations. I argue that the instrumental principle is itself a brute norm, and that this is consistent with a Humean account of practical reasons.

A naturalistic project descended from Hume seeks to explain „ought‟ and normativity as a product of motivational states such as desires and aversions.2 Following Kant, rationalists reject this thesis, holding that „ought‟ rather expresses a command of reason or intellect independent of desires. On Hume‟s view the only genuine form of practical reason is theoretical reason operating in the service of desire, as in calculation of means to ends. Reason at most discovers normative requirements, which exist through the interrelation of subjective desires and objective world. The Humean desiredependence view of the source of normativity is commonly associated with instrumentalism, an influential theory of normative content according to which agents ought always and only to act so as to optimize satisfaction of their own desires. But rationalists (including Thomas Nagel, Jean Hampton, and Christine Korsgaard) have recently argued that proponents of desire-dependence are not entitled even to this instrumentalist „ought.‟3 Instrumentalism holds that all normativity derives from the instrumental norm: approximately, the principle that one ought to take the means to one‟s ends, or..

A naturalistic project descended from Hume seeks to explain „ought‟ and normativity as a product of motivational states such as desires and aversions.2 Following Kant, rationalists reject this thesis, holding that „ought‟ rather expresses a command of reason or intellect independent of desires. On Hume‟s view the only genuine form of practical reason is theoretical reason operating in the service of desire, as in calculation of means to ends. Reason at most discovers normative requirements, which exist through the interrelation of subjective desires and objective world. The Humean desiredependence view of the source of normativity is commonly associated with instrumentalism, an influential theory of normative content according to which agents ought always and only to act so as to optimize satisfaction of their own desires. But rationalists (including Thomas Nagel, Jean Hampton, and Christine Korsgaard) have recently argued that proponents of desire-dependence are not entitled even to this instrumentalist „ought.‟3 Instrumentalism holds that all normativity derives from the instrumental norm: approximately, the principle that one ought to take the means to one‟s ends, or..

The requirements of instrumental rationality are often thought to be normative conditions on choice or intention, but this is a mistake. Instrumental rationality is best understood as a requirement of coherence on an agent's non-instrumental desires and means-end beliefs. Since only a subset of an agent's means-end beliefs concern possible actions, the connection with intention is thus more oblique. This requirement of coherence can be satisfied either locally or more globally, it may be only one among a number of such requirements on an agent's total set of desires and beliefs, and it has no special connection with reasoning. An appreciation of these facts leads to a better understanding of both the nature and the significance of instrumental rationality.

Does rationality require us to take the means to our ends? Intuitively, it seems clear that it does. And yet it has proven difficult to explain why this should be so: after all, if one is pursuing an end that one has decisive reason not to pursue, the balance of reasons will presumably speak against one's taking the means necessary to bring that end about. In this paper I propose a novel account of the instrumental requirement which addresses this problem. On the view I develop, the instrumental requirement is normative not because agents have reasons to comply with it, but because it is a normative standard intrinsic to intentional action—i.e., it is a standard that partly spells out what it is to exercise one's agency well.

This paper criticizes two accounts of the normativity of practical principles: the empiricist account and the rationalist or realist account. It argues against the empiricist view, focusing on the Humean texts that are usually taken to be its locus classicus. It then argues both against the dogmatic rationalist view, and for the Kantian view, through a discussion of Kant's own remarks about instrumental rationality in the second section of the Groundwork. It further argues that the instrumental principle cannot stand alone. Unless there are normative principles directing us to the adoption of certain ends, there can be no requirement to take the means to our ends. The familiar view that the instrumental principle is the only requirement of practical reason is incoherent.