It is a mistake to think that instrumental rationality fixes a single standard for judging or describing actions. While there is a core conception of instrumental rationality, we appeal to different elaborations of that conception for different purposes. An action can be instrumentally rational in some sense(s) but not in others. As we learn more about behavior, it is possible to add useful elaborations of the core conception of instrumental rationality. In this paper, I propose a new elaboration based on (...) Frederic Schick's work on understandings. (shrink)

Rationality requires various things of you. For example, it requires you not to have contradictory beliefs, and to intend what you believe is a necessary means to an end that you intend. Suppose rationality requires you to F. Does this fact constitute a reason for you to F? Does it even follow from this fact that you have a reason to F? I examine these questions and reach a sceptical conclusion about them. I can find no satisfactory argument to show (...) that either has the answer ‘yes’. I consider the idea that rationality is normative for instrumental reasons, because it helps you to achieve some of the things you ought to achieve. I also consider the idea that rationality consists in responding correctly to reasons. I reject both. (shrink)

The famous Cartesian Nicolas Malebranche (1638-1715) espoused the occasionalist doctrine that ‘there is only one true cause because there is only one true God; that the nature or power of each thing is nothing but the will of God; that all natural causes are not true causes but only occasional causes’ (LO, 448, original italics). One of Malebranche’s well-known arguments for occasionalism, known as, the ‘no necessary connection’ argument (or, NNC ) stems from the principle that ‘a true cause… is (...) one such that the mind perceives a necessary connection between it and its effect’ (LO, 450). The outline of this paper is as follows. I explicitly layout NNC and articulate some of its prima facie strengths (§1). I then critically discuss, what I take to be, the two main arguments against NNC of the Lee-Pyle interpretation (§2). The main conclusion from (§2) is that Malebranche did not abandon NNC in his later works given textual evidence from the Dialogues, contrary to the Lee-Pyle interpretation. In (§3) I discuss in what ways Suárez, Leibniz, Régis and Spinoza all accepted the main premise of NNC. Then, I rebut Steven Nadler’s influential and unchallenged criticism that Malebranche conflated causal and logical necessity, and provide a more accurate interpretation of Malebranche that only commits him to a partial reduction of causal to logical necessity (§4). (shrink)

ABSTRACT Philosophers often do not make as sharp a distinction as they should between rationality and normativity. Partly this is because the word ‘reason’ can be used to refer to either, and this leads to a confusion over meanings. This paper starts by clarifying the meanings of ‘normativity’ and ‘rationality’. It argues that it is a conceptual truth that rationality supervenes on the mind. Then it considers substantive arguments that purport to show there is no real distinction between rationality and (...) normativity. Many philosophers give a reductive account of rationality in terms of reasons. In particular, many claim that rationality consists in responding correctly to reasons. Since responding correctly to reasons is the concern of normativity, this in effect identifies rationality with normativity. This paper denies that rationality is identical to normativity, by means of what I call a ‘quick objection’. The quick objection is that rationality supervenes on the mind whereas complying with normativity does not. I consider and reject some ways of responding to the quick objection, including an argument by Kiesewetter to the effect that normativity supervenes on the mind and one by Lord to the effect that rationality does not. I also consider a different, Kantian argument to the effect that rationality does not supervene on the mind. (shrink)

There are at least two basic normative notions: rationality and reasons. The dominant normative account of reasons nowadays, which I call primitive pluralism about reasons, holds that some reasons are normatively basic and there is no underlying normative explanation of them in terms of other normative notions. Kantian constructivism about reasons, understood as a normative rather than a metaethical view, holds that rationality is the primitive normative notion that picks out which non-normative facts are reasons for what and explains why (...) those normative relations hold. By supposing that there is a plurality of primitive reasons, I argue that primitive pluralism about reasons lacks sufficient normative unity and structure. But Kantian constructivism about reasons faces a dilemma of its own: Either a conception of rationality is thick enough to capture the reasons of commonsense, in which case it cannot play the explanatory role assigned to it, or a conception of rationality is genuinely explanatory, in which case it is too thin to generate the reasons we recognize in commonsense. The aim of this paper is to suggest that if Kantian constructivism about reasons were built on a substantive, rather than merely formal, conception of rationality then it would stand a better chance at unifying the particular reasons we would endorse on due reflection. The groundwork I lay in this paper, I explain, is an essential first step in the larger project of developing a version of Kantian constructivism about reasons that might eventually explain all reasons in terms of rationality. (shrink)

Hume argues against the seventeenth-century rationalists that reason is impotent to motivate action and to originate morality. Hume's arguments have standardly been considered the foundation for the Humean theory of motivation in contemporary philosophy. The Humean theory alleges that beliefs require independent desires to motivate action. Recently, however, new commentaries allege that Hume's argument concerning the inertness of reason has no bearing on whether beliefs can motivate. These commentaries maintain that for Hume, beliefs about future pleasurable and painful objects on (...) their own can produce the desires that move us to action. First, I show that this reading puts Hume at odds with Humeans, since the latter are committed, not only to the view that beliefs and desires are both necessary to action, but also to the view that beliefs do not produce desires. Second, I review textual, philosophical and historical grounds for my interpretation of Hume's argument for the inertness of reason. I argue that the new line on Hume, while consistent with a certain reading of the Treatise, is not supported by the Dissertation on the Passions and the second Enquiry, where Hume argues that all motivation has an origin in “taste”, which I take to be different from belief. Thus, Hume's arguments do support the contemporary Humean theory of motivation. (shrink)

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 desire-independent 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. (shrink)

The view to be defended in this paper is intended to be a novel and compelling model of instrumental practical reasoning, reasoning aimed at determining how to act in order to achieve a given end in a certain set of circumstances. On standard views of instrumental reasoning, the end in question is the object of a particular desire that the agent has, a desire which, when combined with the agent’s beliefs about what means are available to him or her in (...) order to satisfy that desire, can cause the formation of an independent desire or intention to engage in the relevant means. One of the main goals in what follows is to show that such views provide an inadequate understanding of instrumental practical reasoning when it comes to the practical lives of agents. We shall proceed as follows. After some background assumptions are outlined in the next section, two important and largely neglected challenges will be raised to any view of instrumental practical reasoning (hereafter IP reasoning) which only countenances the role of end-directed desires and means-end beliefs in the mental economy of agents. In my view, neither of these challenges can be met, or at least not in any straightforward way. Hence the remainder of the paper is devoted to articulating and defending a new approach to understanding the structure of instrumental practical reasoning. The heart of this positive view will involve the addition of a normative belief concerning the desirability of the agent’s end. (shrink)

It is a mistake to think that instrumental rationality fixes a single standard for judging or describing actions. While there is a core conception of instrumental rationality, we appeal to different elaborations of that conception for different purposes. An action can be instrumentally rational in some sense(s) but not in others. As we learn more about behavior, it is possible to add useful elaborations of the core conception of instrumental rationality. In this paper, I propose a new elaboration based on (...) Frederic Schick's work on understandings. (shrink)