Many hope that our values, purged of messy human contingency, could aspire to correspond with mind-independent, rationally obligatory, and eternal ethical facts. But if the arguments of this thesis are on the right track, we should reject the search for non-natural and mind-independent moral truths.

In various essays, Paul Churchland explores the relevance of studies in cognitive science to issues in ethics. What emerges is a kind of ethical naturalism that has two components. The first component is a descriptive‐genealogical one whose purpose is to explain how people come to have their ethical beliefs. The second component is a normative one whose purpose is to explain why some values are better than other values. Given this distinction, the problem of integrating ethics with beliefs about the (...) world is a consequence of the traditional view that it is possible to naturalize descriptive‐genealogical ethics but not normative ethics. With this distinction as background, I critically examine Churchland's exploration of cognitive science's contribution to our understanding of the values and purposes that should direct our lives. The conclusion is twofold. First, using concepts from the American pragmatists, I argue that, pace Churchland, it is possible to bridge the descriptive‐normative gap in order to articulate an ethical naturalism that addresses the so‐called naturalistic fallacy but is not committed to an unpalatable relativism. Second, I argue that the sort of ethical naturalism that emerges has affinities to the postmodern ethics of Jean‐François Lyotard. (shrink)

This article raises a problem for Cornell varieties of moral realism. According to Cornell moral realists, we can know about moral facts just as we do the empirical facts of the natural sciences. If this is so, it would remove any special mystery that is supposed to attach to our knowledge of objective moral facts. After clarifying the ways in which moral knowledge is to be similar to scientific knowledge, I claim that the analogy fails, but for little-noticed reasons. A (...) preliminary conclusion of the article will be that this positive comparison to scientific knowledge hurts, rather than helps, the realist position. Yet, rather than spell trouble for moral realism altogether, I suggest that the apparent failure of Cornell realist moral epistemology points to a better way forward for moral realism. (shrink)

I defend a naturalist theory of moral justification, "Confirmation Theory", from an objection raised by David Copp and Geoffrey Sayre-McCord. Confirmation Theory holds that some moral theory is justified because it is needed in the best empirical explanation of the world. The objection is that moral explanations are "incidental", that even if a moral theory is indispensable, this doesn't establish that any moral standard is justified. I show that the naturalist can concede that moral explanations are incidental and still maintain (...) the attractive elements of Confirmation Theory. (shrink)

A number of philosophers defend naturalistic moral realism by appeal to an externalist semantics for moral predicates. The application of semantic externalism to moral predicates has been attacked by Terence Horgan and Mark Timmons in a series of papers that make use of their “ Moral Twin Earth ” thought experiment. In response, several defenders of naturalistic moral realism have claimed that the Moral Twin Earth thought experiment is misleading and yields distorted and inaccurate semantic intuitions. If they are right, (...) the intuitions generated by Moral Twin Earth cannot be appealed to in arguments against externalist moral semantics. The most developed case against the Moral Twin Earth argument that follows this strategy is found in a paper by Stephen Laurence, Eric Margolis and Angus Dawson. Here I argue that their attack on the Moral Twin Earth thought experiment fails. Laurence, Margolis and Dawson have not shown that we have reason to distrust the semantic intuitions it generates. (shrink)

What features does a norm have to have such that we really ought to follow it? This paper argues that norms are authoritative when they are justified in a particular sense. However, this brand of justification is not any of those with which we are currently familiar. The authority of norms is not a matter of moral, epistemic or prudential justification. It depends instead on what I call "justification simpliciter." The concept of justification simpliciter is defined and defended in this (...) paper. (shrink)

What makes an ``ought'''' claim authoritative? What makes aparticular norm genuinely reason-giving for an agent? This paper arguesthat normative authority can best be accounted for in terms of thejustification of norms. The main obstacle to such a theory, however, isa regress problem. The worry is that every attempt to offer ajustification for an ``ought'''' claim must appeal to another ``ought''''claim, ad infinitum. The paper argues that vicious regress canbe avoided in practical reasoning in the same way coherentists avoid theproblem in (...) epistemology. Norms are justified by their coherence withother norms. (shrink)

Within the nursing ethics literature, there has for some time now been a focus on the role and importance of character for nursing. An overarching rationale for this is the need to examine the sort of person one must be if one is to nurse well or be a good nurse. How one should be to live well or live a/the good life and to nurse well or be a good nurse seems to necessitate a focus on an agent's character (...) as well as actions because character is (for the most part) expressed in action (e.g. see Laird). This paper will give an overview of the reasons for the role and importance of character in nursing practice and explain its relation to nursing's frequent use of virtue ethics in order to recommend caution. While the paper agrees that the role of character is important in nursing caution is needed in both how much moral and thus normative, emphasis is being placed on the psychology of character and on the drift to virtue ethics. The psychological which may be explanatory needs to be linked with the normative, and a justification for the normative is needed. A justification as virtue ethics is contested, and nursing practice does not need to take on this explanatory and justificatory burden.A tentative proposal raised but not discussed in depth in this paper is that when an ultimate explanation or explanatory ground is needed, nursing practice leads quite naturally to a form of consequentialism as well as a realist metaethic. On this account, there are two levels of moral thinking, and nursing practice entails the virtues at one level and leads quite naturally to moral thinking at another more critical level of the criterion of what makes something right and good independently of character. (shrink)

Discussion of moral explanation has reached an impasse, with proponents of contemporary ethical naturalism upholding the explanatory integrity of moral facts and properties, and opponents--including both antirealists and non-naturalistic realists--insisting that such robustly explanatory pretensions as moral theory has be explained away. I propose that the key to solving the problem lies in the question whether instances of moral properties are causally efficacious. It is argued that, given the truth of contemporary ethical naturalism, moral properties are causally efficacious if the (...) properties of the special sciences are. (shrink)

Do moral properties figure in the best explanatory account of the world? According to a popular realist argument, if they do, then they earn their ontological rights, for only properties that figure in the best explanation of experience are real properties. Although this realist strategy has been widely influential—not just in metaethics, but also in philosophy of mind and philosophy of science—no one has actually made the case that moral realism requires: namely, that moral facts really will figure in the (...) best explanatory picture of the world. This issue may have been neglected in part because the influential dialectic on moral explanations between philosophers Gilbert Harman and Nicholas Sturgeon has focused debate on whether moral facts figure in relevant explanations. Yet as others have noted, explanatory relevance is irrelevant when it comes to realism: after all, according to the popular realist argument, it is inference to the best explanation of experience that is supposed to confer ontological rights. I propose to ask, then, the relevant question about moral explanations: should we think that moral properties will figure in the best explanatory account of the world? (shrink)

This dissertation is a critique of synthetic ethical naturalism (SEN). SEN is a view in metaethics that comprises three key theses: first, there are moral properties and facts that are independent of the beliefs and attitudes of moral appraisers (moral realism); second, moral properties and facts are identical to (or constituted only by) natural properties and facts (ethical naturalism); and third, sentences used to assert identity or constitution relations between moral and natural properties are expressions of synthetic, a posteriori necessities. (...) The last of these theses, which distinguishes SEN from other forms of ethical naturalism, is supported by a fourth: the semantic contents of the central moral predicates such as 'morally right' and 'morally good' are fixed in part by features external to the minds of speakers (moral semantic externalism). Chapter 1 introduces SEN and discusses the most common motivations for accepting it. The next three chapters discuss the influential "Moral Twin Earth" argument against moral semantic externalism. In Chapter 2, I defend this argument from the charge that the thought experiment upon which it depends is defective. In Chapters 3 and 4, I consider two attempts to amend SEN so as to render it immune to the Moral Twin Earth argument. I show that each of these proposed amendments amounts to an abandonment of SEN. Chapter Five explores Richard Boyd's proposal that moral goodness is a "homeostatic property cluster." If true, Boyd's hypothesis could be used to support several metaphysical, epistemological, and semantic claims made on behalf of SEN. I advance three arguments against this account of moral goodness. In the sixth chapter, I argue that moral facts are not needed in the best a posteriori explanations of our moral beliefs and moral sensibility. Because of this, those who accept a metaphysical naturalism ought to deny the existence of such facts or else accept skepticism about moral knowledge. In Chapter 7, I consider a counterargument on behalf of SEN to the effect that moral facts are needed in order to explain the predictive success of our best moral theories. I show that this argument fails. (shrink)

I consider whether evolutionary explanations can debunk our moral beliefs. Most contemporary discussion in this area is centred on the question of whether debunking implications follow from our ability to explain elements of human morality in terms of natural selection, given that there has been no selection for true moral beliefs. By considering the most prominent arguments in the literature today, I offer reasons to think that debunking arguments of this kind fail. However, I argue that a successful evolutionary debunking (...) argument can be constructed by appeal to the suggestion that our moral outlook reflects arbitrary contingencies of our phylogeny, much as the horizontal orientation of the whale’s tail reflects its descent from terrestrial quadrupeds. An introductory chapter unpacks the question of whether evolutionary explanations can debunk our moral beliefs, offers a brief historical guide to the philosophical discussion surrounding it, and explains what I mean to contribute to this discussion. Thereafter follow six chapters and a conclusion. The six chapters are divided into three pairs. The first two chapters consider what contemporary scientific evidence can tell us about the evolutionary origins of morality and, in particular, to what extent the evidence speaks in favour of the claims on which debunking arguments rely. The next two chapters offer a critique of popular debunking arguments that are centred on the irrelevance of moral facts in natural selection explanations. The final chapters develop a novel argument for the claim that evolutionary explanations can undermine our moral beliefs insofar as they show that our moral outlook reflects arbitrary contingencies of our phylogeny. A conclusion summarizes my argument and sets out the key questions that arise in its wake. (shrink)