Online research in philosophy

Sidgwick’s dualism of the practical reason is the idea that since egoism and utilitarianism
aim both to have rational supremacy in our practical decisions, whenever they conflict
there is no stronger reason to follow the dictates of either view. The dualism leaves us
with a practical problem: in conflict cases, we cannot be guided by practical reason to
decide what all things considered we ought to do. There is an epistemic problem as well:
the conflict of egoism and utilitarianism shows that they cannot be both self-evident
principles. Only the existence of a just God could, for Sidgwick, prevent the conflict and
thus solve the dualism. The paper first explores in detail and rejects some reconstructions
of the dualism: a purely logical account, and accounts whereby egoism and utilitarianism
are principles of pro tanto reasons or of sufficient reasons. Then it proposes a better account,
in which egoism and utilitarianism are logically compatible and yet conflicting
principles of all things considered reason. The account is shown to fit with Sidgwick’s
view of the dualism and of its practical and epistemic pitfalls. Finally, some views are
discussed as to the wider positive significance of the dualism, regarded as a challenge to
the rational authority of morality, or as indicating the structural opposition of agentrelative
and agent-neutral reasons, or again as the imperfect yet amendable attempt at a
comprehensive pluralist theory of practical reasons.

One aim of the Critique of Practical Reason is to establish that reason alone can determine the will. To show that it can, it suffices to show that there are practical principles given by reason alone – what Kant terms ‘practical laws’, or (roughly) requirements of reason on action. Chapter I of the Analytic accomplishes this aim by arguing that the moral law is an authoritative practical principle given as a ‘fact of reason’. The chapter begins in section 1 with a ‘Definition’ (Erklärung) of a practical law as a practical principle that..

On a ‘comparative’ conception of practical reasons, reasons are like ‘weights’ that can make an action more or less rational. Bernard Gert adopts instead a ‘toggle’ conception of practical reasons: something counts as a reason just in case it alone can make some or other otherwise irrational action rational. I suggest that Gert’s conception suffers from various defects, and that his motivation for adopting this conception – his central claim that actions can be rational without there being reasons for them – does not require adoption of the toggle conception. The more intuitive comparative conception of reasons for action can accommodate the insight.

This is Chapter 5 of my Commonsense Consequentialism: Wherein Morality Meets Rationality. In this chapter, I argue that those who wish to accommodate typical instances of supererogation and agent-centered options must deny that moral reasons are morally overriding and accept both that the reason that agents have to promote their own self-interest is a non-moral reason and that this reason can, and sometimes does, prevent the moral reason that they have to sacrifice their self-interest so as to do more to promote the interests of others from generating a moral requirement. Furthermore, I argue that given that an act’s deontic status of both moral and non-moral reasons, the consequentialist must adopt dual-ranking act-consequentialism. I then defend dual-ranking act-consequentialism against a number of objections.

In the opening chapter of What We Owe To Each Other, Tim Scanlon produces a sustained critique of a Humean conception of practical reason. Scanlon claims he will argue that unless having a desire just is to see something as a reason, desires play (almost) no role in the explanation or justification of action. Yet his specific arguments against Humeanism all employ a very austere understanding of desire (which he calls the "standard model"), and attempt to show that desires so understood are not up to any explanatory or justificatory task. Since the standard model represents only one understanding of desire (distinct from the "recognition of reasons") his specific arguments cannot establish his stated general thesis. I show how a more robust conception of desire will leave the Humean account safe from Scanlon's specific arguments.

Scanlon's account of reasons is essential to his contractualism as a whole, providing an extensive foundation in practical reasoning for his theory. A full understanding of his account of reasons is therefore vital to understanding the nature of Scanlon's contractualism. With the aim of contributing to such an understanding, in this essay I reconstruct several of Scanlon's most significant arguments concerning reasons. I focus on two areas: his discussion of the role of desire in practical reasoning and his arguments for the claim that reason judgements should be seen as objective. I conclude that the weakness of one his claims regarding desire may cause substantial problems for his arguments in both of the areas examined.

People act for reasons. That is how we understand ourselves. But what is it to act for a reason? This is what Fred Schueler investigates. He rejects the dominant view that the beliefs and desires that constitute our reasons for acting simply cause us to act as we do, and argues instead for a view centred on practical deliberation--our ability to evaluate the reasons we accept. Schueler's account of 'reasons explanations' emphasizes the relation between reasons and purposes, and the fact that the reasons for an action are not always good reasons.

I argue that we should reject all traditional forms of act-consequentialism if moral rationalism is true. (Moral rationalism, as I define it, holds that if S is morally required to perform x, then S has decisive reason, all things considered, to perform x.) I argue that moral rationalism in conjunction with a certain conception of practical reasons (viz., the teleological conception of reasons) compels us to accept act-consequentialism. I give a presumptive argument in favor of moral rationalism. And I argue that act-consequentialism is best construed as a theory that ranks outcomes, not according to their impersonal value, but according to how much reason each agent has to desire that they obtain.

This is a book on morality, rationality, and the interconnections between the two. In it, I defend a version of consequentialism that both comports with our commonsense moral intuitions and shares with other consequentialist theories the same compelling teleological conception of practical reasons.

It is through our actions that we affect the way the world goes. Whenever we face a choice of what to do, we also face a choice of which of various possible worlds to actualize. Moreover, whenever we act intentionally, we act with the aim of making the world go a certain way. It is only natural, then, to suppose that an agent’s reasons for action are a function of her reasons for preferring some of these possible worlds to others, such that what she has most reason to do is to bring about the possible world which, of all those available to her, is the one that she has most reason to want to obtain. This is what is known as the ‘teleological conception of practical reasons’. Whether this is the correct conception of practical reasons is important not only in its own right, but also in virtue of its potential implications for what sort of moral theory we should accept. Below, I argue that the teleological conception is indeed the correct conception of practical reasons.