Online research in philosophy

My topic is the debate in moral psychology between the rationalist and the anti-rationalist over the proper relation between reason and desire. My aim is not to adjudicate this debate, but rather to clarify what is at stake, for, it seems to me, both parties are prone to misconceive the issues that divide them.

Thomas Nagel's The Possibility of Altruism (1970) is one of the few sustained attempts to reject instrumental and prudential conceptions of practical reason and to defend the possibility of practical reason that is impartial or altruistic. Nagel makes claims about both moral motivation and practical reason, and each claim has both negative and positive constituents.

At the outset of The Possibility of Altruism Thomas Nagel charts two paths out of the fundamental dilemma confronting metaethics. The first path rejects the claim that a persuasive account of the motivational backing of ethical judgments must involve an agent’s desires. But it is the second path, a path that Nagel charts but does not himself take, that is the focus of this essay. This path retains the standard account, upon which all motivation involves desire, but denies that desires are given prior to reason. Instead, these attitudes that motivate are themselves open to rational assessment. One reason for this focus is that many philosophers, including Quinn, Raz, and Scanlon, have come to reject the claim Nagel takes to block this path – that desires are somehow given prior to reason, hence are not in the relevant way proper objects of rational assessment. A second reason is that unlike the first path, this second does not require the rejection of the belief-desire theory, only the rejection of one assumption about the nature of conative attitudes. Unlike Nagel’s chosen path, then, the second holds out the prospect of reconciling ethical objectivity, internalism, and the belief-desire theory within a unified account. I argue that the account of desire found in Quinn, Raz, and Scanlon, augmented by aspects of Davidson’s account of propositional attitudes, yields a coherent account of the involvement of reason even in basic desires, an account that is well suited to Nagel’s intriguing path not taken.

In The Moral Problem Michael Smith presents what he claims is a decisive argument against moral externalism. Smith's claims that (i) moral externalists are committed to explain the connection between moral beliefs and moral motivation in terms of de dicto desires, and (ii) de dicto desires to perform moral acts amounts to moral fetishism. The argument is spelled out and the difference between desires de dicto and desires de re explained. The tenability of the fetishist argument (as it has been named) is then questioned by focusing on the second clause; contrary to what Smith seems to think, it seems a plausible description of a good moral person that she is often motivated by both kinds of desires and, moreover, there are ways of being motivated to perform moral acts solely by de dicto desires that would not amount to moral fetishism. Lastly, two cases are suggested where being motivated by de dicto desires to perform moral acts would be reasonable as well as morally preferable. Internalists then, should also provide room for de dicto desires in moral motivation.The upshot is that the fetishist argument is unconvincing, though no attempt is made to defend moral externalism in general.

Many believe that the rational evaluation of actions depends on the rational evaluation of even basic desires. Hume, though, viewed desires as "original existences" which cannot be contrary to either truth or reason. Contemporary critics of Hume, including Norman, Brandt and Parfit, have sought a basis for the rational evaluation of desires that would deny some basic desires reason-giving force. I side with Hume against these modern critics. Hume's concept of rational evaluation is admittedly too narrow; even basic desires are, despite their nonrepresentational nature, subject to rational evaluation. But this evaluation is not relevant to their tendency to generate reasons for action, and does not undermine the spirit of the Humean view of rational action.

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..

Does action always arise out of desire? G. F. Schueler examines this hotly debated topic in philosophy of action and moral philosophy, arguing that once two senses of "desire" are distinguished - roughly, genuine desires and pro attitudes - apparently plausible explanations of action in terms of the agent's desires can be seen to be mistaken. Desire probes a fundamental issue in philosophy of mind, the nature of desires and how, if at all, they motivate and justify our actions. At least since Hume argued that reason "is and of right ought to be the slave of the passions," many philosophers have held that desires play an essential role both in practical reason and in the explanation of intentional action. G. F. Schueler looks at contemporary accounts of both roles in various belief-desire models of reasons and explanation and argues that the usual belief-desire accounts need to be replaced. Schueler contends that the plausibility of the standard belief-desire accounts rests largely on a failure to distinguish "desires proper," like a craving for sushi, from so-called "pro attitudes," which may take the form of beliefs and other cognitive states as well as desires proper. Schueler's "deliberative model" of practical reasoning suggests a different view of the place of desire in practical reason and the explanation of action. He holds that we can arrive at an intention to act by weighing the relevant considerations and that these may not include desires proper at all.

What are the comparative roles of reason and the passions in explaining human motivation and behaviour? Accounts of practical reason divide on this central question, with proponents of different views falling into rationalist and Humean camps. By 'rationalist' accounts of practical reason, I mean accounts which make the characteristically Kantian claim that pure reason can be practical in its issue. To reject this view is to take the Humean position that reasoning or ratiocination is not by itself capable of giving rise to a motivation to act. My own view is that the rationalist position can, in the end, be sustained against the challenge of these Humean arguments. To see why, however, it will be necessary to get clear about what is really at stake in the debate about practical reason. A further aim of my discussion will accordingly be to sharpen our understanding of the issue that divides Humeans and rationalists.

Rationalists including Nagel and Korsgaard argue that motivation to the means to our desired ends cannot be explained by appeal to the desire for the end. They claim that a satisfactory explanation of this motivational connection must appeal to a faculty of practical reason motivated in response to desireindependent norms of reason. This paper builds on ideas in the work of Hume and Donald Davidson to demonstrate how the desire for the end is sufficient for explaining motivation to the means. Desiring is analyzed as having motivation towards making the end so, which is analyzed as engaging in mental activity aimed at facilitating that end. I conclude that it is constitutive of an agent’s desiring an end that he is motivated towards what he believes to be means.