Despite having occupied a peripheral position in contemporary metaethics, moral nonnaturalism has recently experienced a revival of sorts. But what is moral nonnaturalism? And what is there to be said in favor of it? In this article, I address these two questions. In the first place, I offer an account of what moral nonnaturalism is. According to the view I propose, nonnaturalism is better viewed not as a position, but as a theoretical stance. And, second, I critically engage with three (...) recent arguments for moral nonnaturalism offered by Russ Shafer-Landau, Kit Fine, and Jean Hampton, respectively. (shrink)

3.0. Well-being as a Challenge to Naturalism. In Chapter Three Adams discusses and criticizes those accounts of a person’s well being which characterize it in terms of counterfactuals regarding her actual desires and preferences. These criticisms are important for the question of ethical naturalism because any plausible naturalist position will have to portray a person’s well-being as somehow or other supervening on features of her psychology and her environment. The sorts of analyses Adams criticizes are the most prominent analyses consistent (...) with this constraint, so it is important to see whether or not Adams’ criticisms of them undermine the prospects for ethical naturalism generally. (shrink)

3.0. Well-being as a Challenge to Naturalism. In Chapter Three Adams discusses and criticizes those accounts of a person’s well being which characterize it in terms of counterfactuals regarding her actual desires and preferences. These criticisms are important for the question of ethical naturalism because any plausible naturalist position will have to portray a person’s well-being as somehow or other supervening on features of her psychology and her environment. The sorts of analyses Adams criticizes are the most prominent analyses consistent (...) with this constraint, so it is important to see whether or not Adams’ criticisms of them undermine the prospects for ethical naturalism generally. (shrink)

This paper is a critical discussion of John Dupré's recent defence of promiscuous realism in Part 1 of his The Disorder of Things: Metaphysical Foundations of the Disunity of Science. It also discusses some more general issues in the philosophy of biology and science. Dupré's chief strategy of argumentation appeals to debates within the philosophy of biology, all of which concern the nature of species. While the strategy is well motivated, I argue that Dupré's challenge to essentialist and unificationist views (...) about natural kinds is not successful. One conclusion is that an integrative conception of species is a real alternative to Dupré's pluralism. (shrink)

We are moral apes, a difference between humans and our relatives that has received significant recent attention in the evolutionary literature. Evolutionary accounts of morality have often been recruited in support of error theory: moral language is truth-apt, but substantive moral claims are never true. In this article, we: locate evolutionary error theory within the broader framework of the relationship between folk conceptions of a domain and our best scientific conception of that same domain; within that broader framework, argue that (...) error theory and vindication are two ends of a continuum, and that in the light of our best science, many folk conceptual structures are neither hopelessly wrong nor fully vindicated; and argue that while there is no full vindication of morality, no seamless reduction of normative facts to natural facts, nevertheless one important strand in the evolutionary history of moral thinking does support reductive naturalism—moral facts are facts about cooperation, and the conditions and practices that support or undermine it. In making our case for, we first respond to the important error theoretic argument that the appeal to moral facts is explanatorily redundant, and second, we make a positive case that true moral beliefs are a ‘fuel for success’, a map by which we steer, flexibly, in a variety of social interactions. The vindication, we stress, is at most partial: moral cognition is a complex mosaic, with a complex genealogy, and selection for truth-tracking is only one thread in that genealogy. (shrink)

Philosophers have long been interested in a series of interrelated questions about natural kinds. What are they? What role do they play in science and metaphysics? How do they contribute to our epistemic projects? What categories count as natural kinds? And so on. Owing, perhaps, to different starting points and emphases, we now have at hand a variety of conceptions of natural kinds—some apparently better suited than others to accommodate a particular sort of inquiry. Even if coherent, this situation isn’t (...) ideal. My goal in this article is to begin to articulate a more general account of ‘natural kind phenomena’. While I do not claim that this account should satisfy everyone—it is built around a certain conception of the epistemic role of kinds and has an obvious pragmatic flavour—I believe that it has the resources to go further than extant alternatives, in particular the homeostatic property cluster view of kinds. (shrink)

Ethical reductionism is the best version of naturalistic moral realism. Reductionists regard moral properties as identical to properties appearing in successful scientific theories. Nonreductionists, including many of the Cornell Realists, argue that moral properties instead supervene on scientific properties without identity. I respond to two arguments for nonreductionism. First, nonreductionists argue that the multiple realizability of moral properties defeats reductionism. Multiple realizability can be addressed in ethics by identifying moral properties uniquely or disjunctively with properties of the special sciences. Second, (...) nonreductionists argue that irreducible moral properties explain empirical phenomena, just as irreducible special-science properties do. But since irreducible moral properties don't successfully explain additional regularities, they run the risk of being pseudoscientific properties. Reductionism has all the benefits of nonreductionism, while also being more secure against anti-realist objections because of its ontological simplicity. (shrink)

People disagree about whether individuals in rich countries like the United States have an obligation to aid the world’s poorest people. A tempting thought is that this disagreement comes down to a non-moral matter. I argue that we should be suspicious of this view. Drawing on psychological evidence, I show that we should be more pessimistic about our ability to attribute the disagreement to a difference in factual beliefs.

Moral relativists often defend their view as an inference to the best explanation of widespread and deep moral disagreement. Many philosophers have challenged this line of reasoning in recent years, arguing that moral objectivism provides us with ample resources to develop an equally or more plausible method of explanation. One of the most promising of these objectivist methods is what I call the self-interest explanation, the view that intractable moral diversity is due to the distorting effects of our interests. In (...) this paper I examine the self-interest explanation through the lens of the famine debate, a well-known disagreement over whether we have a moral obligation to donate most of our income to the global poor. I argue that objectivists should reduce their confidence that the persistence of the famine debate is due to the distorting influence of self-interest. If my argument is on target, then objectivists may need to supply a stronger explanation of moral disagreement to defend their view against the threat of moral relativism. (shrink)

Moral particularism, as recently defended, charges that traditional moral theorizing unduly privileges moral principles. Moral generalism defends a prominent place for moral principles. Because moral principles are often asked to play multiple roles, moral particularism aims at multiple targets. We distinguish two leading roles for moral principles, the role of standard and the role of guide. We critically survey some of the leading arguments both for and against principles so conceived.