Online research in philosophy

Parfit's most controversial claim about personal identity is that personal identity does not matter in the way we uncritically think it does) I would like to analyze Parfit's reasons for making this claim. These reasons are complex, and they stand in some tension with one another. I would like to examine them carefully and to try to arrive at the strongest case that can be made for Parfit's controversial claim about what matters.

I argue that Parfit's On What Matters does not make a compelling case against subjective accounts of reasons for action.

The thought of Wilfrid Sellars has figured prominently in recent discussions of the relationship between naturalism and normativity . On the one hand, some have appealed to Sellars' philosophy in defence of the thesis that what he called the normative 'space of reasons' is in some sense sui generis and irreducible to the natural causal order described by the natural sciences. On the other hand, others have exploited equally central aspects of Sellars' philosophy in defence of the seemingly incompatible project of attempting to give an exhaustive scientifically naturalist account of mind and meaning, and perhaps of the nature of normativity itself. I contend that what Sellars described as 'the Janus-faced character of languagings as belonging to both the causal order and the order of reasons' ( Naturalism and Ontology ) is the key to understanding his normative and pragmatist variety of naturalism. Sellars saw himself as having articulated a detailed philosophical perspective within which the normative aspects of meaning, knowledge, truth, and representation are themselves opened up, in principle, to naturalistic explanation.

Jonathan Dancy’s Practical Reality makes a significant contribution to clarifying the relationship between desire and reasons for acting, both the normative reasons we seek in deliberation and the motivating reasons we cite in explanation. About the former, Dancy argues that, not only are normative reasons not all grounded in desires, but, more radically, the fact that one desires something is never itself a normative reason. And he argues that desires fail to figure in motivating reasons also, concluding that neither the fact nor the state of desire is ever a motivating reason for acting. I am in significant agreement with Dancy about these matters, but I want to register some reservations nonetheless. Dancy is certainly right to reject the DBR (desire-based reasons) thesis that all normative reasons are grounded in desires.1 Desires, he points out, call for reasons no less than do actions. But I think he insufficiently appreciates a way in which facts about the agent’s desires and related practical psychic states can provide normative reasons. Not that this gives away anything to Dancy’s Humean opponents. What gives an agent’s desires, values, and moral convictions normative weight, I shall suggest, is her dignity and integrity as an individual person.

If I understand him correctly, Derek Parfit’s views place us, philosophically speaking, in a very small box. According to Parfit, normativity is an irreducible non-natural property that is independent of the human mind. That is to say, there are normative truths - truths about what we ought to do and to want, or about reasons for doing and wanting things. The truths in question are synthetic a priori truths, and accessible to us only by some sort of rational intuition. Parfit supposes that if we are to preserve the irreducibility of the normative, this is just about all we can say, at least until we bring in some actual intuitions to supply the story with some content.

While "moral naturalism" is sometimes used to refer to any approach to metaethics intended to cohere with naturalism in metaphysics more generally, the label is more usually reserved for naturalistic forms of moral realism according to which there are objective moral facts and properties and these moral facts and properties are natural facts and properties. Views of this kind appeal to many as combining the advantages of naturalism and realism but have seemed to many others to do inadequate justice to central dimensions of our practice with our moral concepts. This entry examines some of these concerns and some ways in which moral naturalists have responded to them. It also profiles central aspects of the more particular views of some leading contemporary advocates of moral naturalism.

I examine an argument that appears to take us from Parfit’s [Reasons and Persons, Oxford: Clarendon Press (1984)] thesis that we have no reason to fulfil desires we no longer care about to the conclusion that the effect of posthumous events on our desires is a matter of indifference (the post-mortem thesis). I suspect that many of Parfit’s readers, including Vorobej [Philosophical Studies 90 (1998) 305], think that he is committed to (something like) this reasoning, and that Parfit must therefore give up the post-mortem thesis. However, as it turns out, the argument is subtly equivocal and does not commit Parfit to the post-mortem thesis. I close with some doubts about Parfit’s case for his indifference thesis.

In On What Matters Derek Parfit argues that facts about reasons for action are grounded in facts about values and against the view that they are grounded in facts about the desires that subjects would have after fully informed and rational deliberation. I describe and evaluate Parfit's arguments for this value-based conception of reasons for action and find them wanting. I also assess his response to Sidgwick's suggestion that there is a Dualism of Practical Reason. Parfit seems not to notice that his preferred value-based conception of reasons for action augurs strongly in favour of a view like Sidgwick's. 1.

Machine generated contents note: Introduction; 1. Naturalism in moral philosophy Gilbert Harman; 2. Normativity and reasons: five arguments from Parfit against normative naturalism David Copp; 3. Naturalism: feel the width Roger Crisp; 4. On ethical naturalism and the philosophy of language Frank Jackson; 5. Metaethical pluralism: how both moral naturalism and moral skepticism may be permissible positions Richard Joyce; 6. Moral naturalism and categorical reasons Terence Cuneo; 7. Does analytical moral naturalism rest on a mistake? Susana Nuccetelli and Gary Seay; 8. Supervenience and the nature of normativity Michael Ridge; 9. Can normativity be naturalized? Robert Audi; 10. Ethical non-naturalism and experimental philosophy Robert Shaver; 11. Externalism, motivation, and moral knowledge Sergio Tenenbaum; 12. Naturalism, absolutism, relativism Michael Smith.

The paper examines Derek Parfit’s claim that naturalism trivializes the agent’s practical argument and therefore abolishes the normativity of its conclusion. In the first section, I present Parfit’s charge in detail. After this I discuss three possible responses to the objection. I show that the first two responses either fail or are inconclusive. Trying to avoid Parfit’s charge by endorsing irreductionist naturalism is not a solution because this form of naturalism is metaphysically untenable. Non- descriptive naturalism, on the other hand, does not answer the pressing concern behind Parfit’s charge. I conclude that we had better turn to the third response: Peter Railton’s vindicatory reductionism. However, I also argue that naturalism can only avoid triviality in this way if it is able to respond to further challenges concerning the vindication of the reduction it proposes. Hence, though not a knockdown argument as it is intended to be, Parfit’s charge can still pose a threat to naturalist accounts of normativity.