Survey of some recent literature on normativity, including nonreductionist, neo-Aristotelian, neo-Humean, expressivist, and constructivist views.

Quine's ethical views typify what might seem to be natural sympathies between empiricism and ethical noncognitivism. LikeAyer, he sees a case for noncognitivism rooted in an epistemic discontinuity between ethics and science. Quine argues that the absence of genuine moral observation sentences, and thus the absence of empirical checkpoints for the resolution of theoretical disputes, renders ethics, as he terms it, “methodologically infirm” However, recent papers in this journal make clear that Quine appears to be voicing mutually incompatible commitments to (...) both noncognitivism and cognitivism. Here I argue that Davidson's theory of interpretation offers promising ways to resolve these tensions. His constructive program fleshes out the implications of Quine's largely destructive critique of intensional semantics and contains a fairly well‐articulated account of evaluative semantics, one which seems to combine cognitivist and noncognitivist elements harmoniously. Moreover, it is argued that Davidson's long‐standing differences with Quine over the epistemological status Quine accords observation sentences with do not undermine Quine's metaethical critique. (shrink)

El escepticismo moral sostiene que las proposiciones morales no son verdaderas ni falsas de acuerdo al criterio de verdad por correspondencia, y que el criterio de verdad por coherencia no es aplicable en moral. Para refutarlo, habría que mostrar la existencia de hechos morales, o demostrar que la coherencia es suficiente para una buena teoría moral. El artículo sostiene que esto no puede hacerse. Moral skepticism maintains that moral propositions are no true, nor false, according with the correspondence theory of (...) truth, and the coherence theory of truth is not applicable in morality. To refute it, somebody has to prove the existence of moral facts, or demostrate that coherence is a sufficient condition for a good moral theory. According the paper, this cannot be done. (shrink)

The practice-dependent approach to justice has received a lot of attention in post-millennium political philosophy. It has been developed in different directions and its normative implications have been criticized, but little attention has been directed to the very distinction between practice-dependence and practice-independence and the question of what theoretically differentiates a practice-dependent account from mainstream practice-independent accounts. The core premises of the practice-dependent approach, proponents argue, are meta-normative and methodological. A key feature is the presumption that a concept of justice (...) is dependent on the function or aim of the social practices to which it is supposed to be applied. Closely related to this meta-normative thesis is an interpretive methodology for deriving principles of justice from facts about existing practices, in particular regarding their point and purpose. These two premises, practice-dependent theorists claim, differentiate their account since they are not accepted by practice-independent accounts and they justify different principles of justice than practice-independent accounts. Our aim in this article is to refute both and, demonstrating that practice-independent accounts may indeed accept the meta-normative and methodological premises of the practice-dependent accounts, and that we are given no theoretical reason to think that practice-dependent accounts justify other principles of justice for a practice than do practice-independent accounts. In other words, practice-dependent theorists have not substantiated their claim that practice-dependence is theoretically differentiated from mainstream accounts. When practice-dependent proponents argue for other principles of justice than mainstream theorists, it will be for the usual reason in normative theory: their first-order normative arguments differ. (shrink)

Political realists’ rejection of the so-called ‘ethics first’ approach of political moralists, has raised concerns about their own source of normativity. Some realists have responded to such concerns by theorizing a distinctively political normativity. According to this view, politics is seen as an autonomous, independent domain with its own evaluative standards. Therefore, it is in this source, rather than in some moral values ‘outside’ of this domain, that normative justification should be sought when theorizing justice, democracy, political legitimacy, and the (...) like. For realists the question about a distinctively political normativity is important, because they take the fact that politics is a distinct affair to have severe consequences for both how to approach the subject matter as such and for which principles and values can be justified. Still, realists have had a hard time clarifying what this distinctively political normativity consists of and why, more precisely, it matters. The aim of this paper is to take some further steps in answering these questions. We argue that realists have the choice of committing themselves to one of two coherent notions of distinctively political normativity: one that is independent of moral values, where political normativity is taken to be a kind of instrumental normativity; another where the distinctness still retains a justificatory dependence on moral values. We argue that the former notion is unattractive since the costs of commitment will be too high, and that the latter notion is sound but redundant since no moralist would ever reject it. Furthermore, we end the paper by discussing what we see as the most fruitful way of approaching political and moral normativity in political theory. (shrink)

In Section 1, I rehearse some arguments for the claim that morality should be ``action-guiding'', and try to state the conditions under which a moral theory is in fact action-guiding. I conclude that only agents who are cognitively and conatively ``ideal'' are in general able to use a moral theory as a guide to action. In Sections 2 and 3, I discuss whether moral ``actualism'' implies that morality cannot be action-guiding even for ideal agents. If actualism is true, an ideal (...) agent will know about her own future actions. Since such foreknowledge is often thought to be incompatible with deliberation, and since action-guidance presupposes the possibility of deliberation, there is an apparent difficulty in combining actualism with the requirement of action-guidance. In opposition to an argument by Jan Österberg, I try to show that actualism and action-guidance are in fact compatible. (shrink)

Metaethical—or, more generally, metanormative— realism faces a serious epistemological challenge. Realists owe us—very roughly speaking—an account of how it is that we can have epistemic access to the normative truths about which they are realists. This much is, it seems, uncontroversial among metaethicists, myself included. But this is as far as the agreement goes, for it is not clear—nor uncontroversial—how best to understand the challenge, what the best realist way of coping with it is, and how successful this attempt is. (...) In this paper I try, first, to present the challenge in its strongest version, and second, to show how realists—indeed, robust realists—can cope with it. The strongest version of the challenge is, I argue, that of explaining the correlation between our normative beliefs and the independent normative truths. And I suggest an evolutionary explanation as a way of solving it. (shrink)

More and more people seem to think that constructivism - in political philosophy, in moral philosophy, and perhaps in practical reasoning most generally - is the way to go. And yet it is surprisingly hard to even characterize the view. In this paper, I go to some lengths trying to capture the essence of a constructivist position - mostly in the realm of practical reason - and to pinpoint its theoretical attractions. I then give some reason to suspect that there (...) cannot be a coherent constructivist view about practical reason as a whole, at least not if it is to be interestingly constructivist, in a sense I make reasonably precise. (shrink)

Moral disagreement is widely held to pose a threat for metaethical realism and objectivity. In this paper I attempt to understand how it is that moral disagreement is supposed to present a problem for metaethical realism. I do this by going through several distinct (though often related) arguments from disagreement, carefully distinguishing between them, and critically evaluating their merits. My conclusions are rather skeptical: Some of the arguments I discuss fail rather clearly. Others supply with a challenge to realism, but (...) not one we have any reason to believe realism cannot address successfully. Others beg the question against the moral realist, and yet others raise serious objections to realism, but ones that—when carefully stated—can be seen not to be essentially related to moral disagreement. Arguments based on moral disagreement itself have almost no weight, I conclude, against moral realism. (shrink)

This is a review essay devoted to Pekka Väyrynen’s The Lewd, the Rude and the Nasty. Väyrynen’s book, concerned with thick terms and thick concepts, argues for a pragmatic view on the evaluativeness associated with these terms and concepts. The essay raises a number of critical questions regarding what Väyrynen’s arguments for his view actually show. It deals with, for example, thick properties, the fact-value distinction, what it is for terms and concepts to be (semantically) evaluative, and whether Väyrynen’s arguments (...) generalize to thin evaluative concepts. (shrink)

Much in contemporary metaethics revolves around the two positions known as ‘motivational internalism’ and the ‘Humean theory of motivation’. The importance of these positions is mostly due to their role in what is considered to be the most powerful argument for metaethical non-cognitivism: the so-called ‘motivation argument’. In my paper, I want to argue that widely accepted renditions of the MA, such as the rendition recently forwarded by Russ Shafer-Landau, are flawed in two senses. First, they fail to sufficiently distinguish (...) between conceptual claims and empirical psychological claims, thereby somewhat obscuring the status of the argument and its conclusion. Secondly, they start from definitions of motivational internalism that are, in crucial respects, too strong. Motivational internalism is usually formulated as the claim that moral judgements necessarily motivate; as I want to argue, however, the claim that moral judgements potentially motivate is all the motivational internalism a noncognitivist defender of the MA is ever going to need. (shrink)

One important trend in the debate over expressivism and cognitivism is the emergence of ‘hybrid’ or ‘ecumenical’ theories. According to such theories, moral sentences express both beliefs, as cognitivism has it, and desire-like states, as expressivism has it. One may wonder, though, whether the hybrid move is as novel as its advocates seem to take it to be—or whether it simply leads us back to the conceptions of early expressivists, such as Charles Stevenson or Richard Hare. Michael Ridge has recently (...) argued that we ought not to see Hare as a hybrid expressivist because Hare’s approach allows for moral sentences that do not express any descriptive beliefs at all. Yet, Ridge’s reading has been challenged by John Eriksson, who even goes as far as to claim that modern hybrid expressivists should follow in Hare’s footsteps because it is Hare’s framework that actually provides a solution to the so-called ‘Frege-Geach problem’. In the present paper, I first want to show that we can defend Eriksson’s reading with regard to the official version of Hare’s theory. I will, secondly, argue that, in line with what we may take to be Ridge’s critical perspective on Hare, this official version faces serious difficulties, resulting from the possibility of unknown speaker standards. Thirdly, I will demonstrate that a modern reconstruction of Hare in terms of what I will refer to as ‘de dicto beliefs’, though in principle possible, will not allow us to solve the ‘Frege-Geach problem’. (shrink)

We discuss the implications of the findings reported in the target article for moral theory, and argue that they represent a clear and genuine case of fundamental moral disagreement. As such, the findings support a moderate form of moral anti-realism – the position that, for some moral issues, there is no fact of the matter about what is right and wrong.

The hypothesis of this paper is that legal positivism depends on the non plausibility of strong moral cognitivism because of the non necessary connection thesis between law and morality that legal positivism is supposed to acknowledge. The paper concludes that only when based on strong moral cognitivism is it consistent to sustain the typical non-positivistic thesis of the necessary connection between law and morality. Habermas’s Philosophy of law is confronted with both positions.

This book argues for the need to put into practice a profound and comprehensive intellectual revolution, affecting to a greater or lesser extent all branches of scientific and technological research, scholarship and education. This intellectual revolution differs, however, from the now familiar kind of scientific revolution described by Kuhn. It does not primarily involve a radical change in what we take to be knowledge about some aspect of the world, a change of paradigm. Rather it involves a radical change in (...) the fundamental, overall intellectual aims and methods of inquiry. At present inquiry is devoted to the enhancement of knowledge. This needs to be transformed into a kind of rational inquiry having as its basic aim to enhance personal and social wisdom. This new kind of inquiry gives intellectual priority to the personal and social problems we encounter in our lives as we strive to realize what is desirable and of value – problems of knowledge and technology being intellectually subordinate and secondary. For this new kind of inquiry, it is what we do and what we are that ultimately matters: our knowledge is but an aspect of our life and being. (shrink)

Jonas Olson presents a critical survey of moral error theory, the view that there are no moral facts and so all moral claims are false. Part I explores the historical context of the debate; Part II assesses J. L. Mackie's famous arguments; Part III defends error theory against challenges and considers its implications for our moral thinking.

Pour contrer le scepticisme au sujet de la connaissance des valeurs, la plupart soutiennent avec John Rawls qu’une croyance comme celle qu’une action est bonne est justifiée dans la mesure où elle appartient à un ensemble de croyances cohérent, ayant atteint un équilibre réfléchi. Christine Tappolet s’inspire des travaux de Max Scheler et d’Alexius von Meinong pour défendre une conception opposée au cohérentisme. La connaissance des valeurs est affirmée dépendre de nos émotions, ces dernières étant conçues comme des perceptions des (...) valeurs. (shrink)

Desires matter. What are desires? Many believe that desire is a motivational state: desiring is being disposed to act. This conception aligns with the functionalist approach to desire and the standard account of desire's role in explaining action. According to a second influential approach, however, desire is first and foremost an evaluation: desiring is representing something as good. After all, we seem to desire things under the guise of the good. Which understanding of desire is more accurate? Is the guise (...) of the good even right to assume? Should we adopt an alternative picture that emphasizes desire's deontic nature? What do neuroscientific studies suggest? -/- Essays in the first section of the volume are devoted to these questions, and to the puzzle of desire's essence. In the second part of the volume, essays investigate some implications that the various conceptions of desire have on a number of fundamental issues. For example, why are inconsistent desires problematic? What is desire's role in practical deliberation? How do we know what we want? -/- This volume will contribute to the emergence of a fruitful debate on a neglected, albeit crucial, dimension of the mind. (shrink)

Are there such things as moral truths? How do we know what we should do? And does it matter? Constructivism states that moral truths are neither invented nor discovered, but rather are constructed by rational agents in order to solve practical problems. While constructivism has become the focus of many philosophical debates in normative ethics, meta-ethics and action theory, its importance is still to be fully appreciated. These new essays written by leading scholars define and assess this new approach in (...) ethics, addressing such questions as the nature of constructivism, how constructivism improves our understanding of moral obligations, how it accounts for the development of normative practices, whether moral truths change over time, and many other topics. The volume will be valuable for advanced students and scholars of ethics and all who are interested in questions about the foundation of morality. (shrink)

What ought to be the aims of science? How can science best serve humanity? What would an ideal science be like, a science that is sensitively and humanely responsive to the needs, problems and aspirations of people? How ought the institutional enterprise of science to be related to the rest of society? What ought to be the relationship between science and art, thought and feeling, reason and desire, mind and heart? Should the social sciences model themselves on the natural sciences: (...) or ought they to take a different form if they are to serve the interests of humanity objectively, sensitively and rigorously? Might it be possible to get into human life, into art, education, politics, industry, international affairs, and other domains of human activity, the same kind of progressive success that is found so strikingly, on the intellectual level, within science? These are some of the questions tackled by What’s Wrong With Science? But the book is no abstruse treatise on the philosophy of science. Most of it takes the form of a passionate debate between a Scientist and a Philosopher, a debate that is by turns humorous, ironical, bitter, dramatically explosive. Even as the argument explores the relationship between thought and feeling, reason and desire, the two main protagonists find it necessary to examine their own feelings and motivations. (shrink)

Metaethics, understood as a distinct branch of ethics, is often traced to G. E. Moore's 1903 classic, Principia Ethica. Whereas normative ethics is concerned to answer first order moral questions about what is good and bad, right and wrong, metaethics is concerned to answer second order non-moral questions about the semantics, metaphysics, and epistemology of moral thought and discourse. Moore has continued to exert a powerful influence, and the sixteen essays here represent the most up-to-date work in metaethics after, and (...) in some cases directly inspired by, the work of Moore. (shrink)

Much work in contemporary bioethics defends a broadly liberal view of human reproduction. I shall take this view to comprise (but not to be exhausted by) the following four claims.1 First, it is permissible both to reproduce and not to reproduce, either by traditional means or by means of assisted reproductive techniques such as IVF and genetic screening. Second, it is permissible either to reproduce or to adopt or otherwise foster an existing child to which one is not biologically related. (...) Third, it is permissible either to bring into existence a child with the greatest chance of a life of maximum human flourishing or to bring into existence a child with a life worth living but with less than the greatest chance of a life of maximum human flourishing. Fourth, it is impermissible to bring into existence a child whose life is either certain or likely to fall below some baseline of a human life minimally worth living. (shrink)

What motivates the benevolent or charitable agent is regard for another’s good or well-being, but talk about regard for others’ good or well- being is simply talk about benevolence or charity in different terms. Yet Hume clearly holds that the regard for another’s good is a motive to produce benevolent acts that is distinct from a sense of their benevolence. So what is the difference? ‘Well’, one might say, ‘intuitively, rights are very different from wellbeing.’ Yes indeed. And that, I (...) shall contend, is Hume’s point. My general contention is that Hume’s discussion of justice is in fact an attack on that concept of rights we think of as having motivated the American and French revolutions, a concept that is still (deplorably in my view) prevalent. I think the very fact that it is so prevalent and so sanctified by its position in the American Constitution has blinded most readers to the power and plausibility of Hume’s attack, which I shall try to defend. (shrink)

I propose to reconsider Gilbert Ryle’s thesis in 1956 in his introduction to The Revolution of Philosophy that “the story of twentieth-century philosophy is very largely the story of this notion of sense or meaning” and, as he writes elsewhere, the “preoccupation with the theory of meaning is the occupational disease of twentieth-century Anglo-Saxon and Austrian philoso- phy.” Ryle maintains that this preoccupation demar- cates analytic philosophy from its predecessors and that it gave philosophy a set of academic credentials as (...) a rigorous discipline with its own domain and method. I will maintain that Ryle, with some minor qualifica- tions, was correct in his assessment of the nature of analytic philosophy at that time, and I will argue that the next 50 years continued to be, very largely, the story of meaning, exemplified by the groundbreaking work of Rawls and Kripke. However, I argue that this work also contains the seeds that contributed to the emergence of philosophies that represent a significant departure from analytic philosophy. (shrink)

In this paper I offer a characterization of evaluative realism, present the intuitive case against it, and offer two considerations to support it further: one concerning the internalist connection between values and motivation, and the other concerning the intuitibve causal inefficacy of evaluative properties. The considerations ultimately rely on the former intuitions themselves, but are not devoid of interest, as they might make one revise what one took to be his own realistic supporting intuitions, if such one had.

Argues that emotivism is compatible with cases where we seem to lack motivation to act according to our moral opinions.

Thesis (Ph. D.)--University of Hawaii at Manoa, 1991.

Biological research has the capacity to inform ethical discussions. There are numerous questions about the nature of sexual orientation, intelligence, gender identity, etc., and many of these questions are commonly approached with the benefit of implicit or explicit biological commitments. The answers to these sorts of questions can have a powerful impact on social, ethical, and political positions. In this project I examine the prospect of naturalizing ethics under the umbrella of developmental systems theory (DST). If one is committed to (...) DST, then those ideas involved in DST that steer biological research will also have implications for ethics. There has been much debate over whether certain human traits or attributes are the consequence of nature or nurture. This kind of question tends to be articulated in dichotomous terms where the focal point of the discussion is over which opposing causal mechanism asserts the most power over the development of these attributes. The debate places particular importance on such distinctions as that between gene and environment, and biology and culture. DST seeks to dismiss such dichotomous accounts. In this sense, DST is an attempt to do biology without these dichotomies. In the process, DST articulates a reconceptualized notion of "the natural." I am interested in how DST’s reconceptualization of the natural can inform a naturalistic approach to ethics. Thus, the aim of this project is to examine the ramifications of taking DST as a guiding principle in the naturalization of ethics. (shrink)

In this chapter I explore what painful art can tell us about the nature and importance of human welfare. My goal is not so much to defend a new solution to the paradox of tragedy, as it is to explore the implications of the kinds of solutions that I find attractive. Both nonhedonic compensatory theories and constitutive theories explain why people seek out painful art, but they have troublesome implications. On some narrow theories of well-being, they imply that painful art (...) is bad for us. Accordingly, we may rightly wonder if it rational for people to watch melodramas or to listen to love songs. One might think that we should generally avoid unpleasant works of art. This implication flirts with absurdity. I show how it can be avoided by making a distinction between well-being and worth. (shrink)

Abstract. This paper argues that the “Argument from Moral Peer Disagreement” fails to make a case for widespread moral skepticism. The main reason for this is that the argument rests on a too strong assumption about the normative significance of peer disagreement (and higher-order evidence more generally). In order to demonstrate this, I distinguish two competing ways in which one might explain higher-order defeat. According to what I call the “Objective Defeat Explanation” it is the mere possession of higher-order evidence (...) that explains defeat. I argue that this type of explanation is problematic and that it at best collapses into another explanation I call the “Subjective Defeat Explanation”. According to this explanation, it is coming to believe that one’s belief fails to be rational that explains defeat. Then I go on to argue that the Subjective Defeat Explanation is able to provide a straightforward explanation of higher-order defeat but that it entails that peer disagreement (and higher-order evidence more generally) only contingently gives rise to defeat, and importantly, that the condition it is contingent upon is very often not satisfied when it comes to moral peer disagreement specifically. As a result, it appears that moral knowledge is seldom threatened by moral peer disagreement. (shrink)

An overview of Dai's ethics, highlighting some overlooked or misunderstood theses on moral deliberation and motivation.

Theories of well-being tell us what makes a life good for the one who lives it. But there is more to what makes a life worth living than just well-being. We care about the worth of our lives, and we are right to do so. I defend an objective list theory of the worth of a life: The most worthwhile lives are those high in various objective goods. These principally include welfare and meaning. By distinguishing between worth and welfare, we (...) can capture the intuitive pull of broad theories of welfare without their liabilities. (shrink)

Much recent work in meta-ethics and ethical theory has drawn extensively on claims about moral psychology. The goal of this paper is to provide a broad overview of some of these claims and the implications that certain philosophers are taking them to have for the plausibility of moral relativism.

There has been the recurrent suspicion that community, harmony, cohesion, and similar relational goods as understood in the African ethical tradition threaten to occlude difference. Often, it has been Western defenders of liberty who have raised the concern that these characteristically sub-Saharan values fail to account adequately for individuality, although some contemporary African thinkers have expressed the same concern. In this chapter, I provide a certain understanding of the sub-Saharan value of communal relationship and demonstrate that it entails a substantial (...) allowance for difference. I aim to show that African thinkers need not appeal to, say, characteristically Euro-American values of authenticity or autonomy to make sense of why individuals should not be pressured to conform to a group’s norms regarding sex and gender. A key illustration involves homosexuality. (shrink)

This paper presents a comparative evaluation of constructivist and error theoretic accounts of moral claims. It is argued that constructivism has distinct advantages over error theory.

What role should a motivation to do the right thing, read de dicto, play in the life of a virtuous agent? According to a prominent argument from Michael Smith, those who are only motivated by such a desire are moral fetishists. Since Smith’s argument, a number of philosophers have examined what role this desire would play in the life of the morally virtuous agent. My primary aim in this paper is an historical one. I will show that much of this (...) discussion can be found in Adam Smith’s The Theory of the Moral Sentiments (1764), published over two hundred years before Michael Smith’s The Moral Problem. I will then argue that there is an important insight to be found in Adam Smith’s book that is missing from the contemporary discussion. According to Adam Smith, while a de dicto desire to do the right thing can play an important role in the life of a virtuous agent, the person who is only ever motivated by this desire will often be epistemically disadvantaged compared to the person who possesses the appropriate sentiments. I will argue that Adam Smith’s claim is plausible given his own view of the moral sentiments as providing the foundation of morality. In addition, there is good reason to accept Smith’s claim even for those who do not accept his view of the foundational role of the moral sentiments. (shrink)

I consider here the issue of whether and to what extent moral truths are absolute. My aim is to raise some new considerations in favor of moral relativism: the thesis that some moral statements can vary in truth-value depending on the moral standards at issue.1 2 This paper has three major components. First, I describe a new puzzle concerning the possibility of moral knowledge in light of expert disagreement. I argue that the best solution to this puzzle requires moral relativism. (...) Second, I develop a notion of a moral standard that incorporates recent developments in moral psychology, including work by.. (shrink)

Metaethics is the study of metaphysics, epistemology, the philosophy of mind, and the philosophy of language, insofar as they relate to the subject matter of moral or, more broadly, normative discourse – the subject matter of what is good, bad, right or wrong, just, reasonable, rational, what we must or ought to do, or otherwise. But out of these four ‘core’ areas of philosophy, it is plausibly the philosophy of language that is most central to metaethics – and not simply (...) because ‘metaethics’ was for a long time construed more narrowly as a name for the study of moral language. The philosophy of language is central to metaethics because both the advantages of and the open problems facing different metaethical theories differ sharply over the answers those theories give to central questions in the philosophy of language. In fact, among the open problems over which such theories differ, are included particularly further problems in the philosophy of language. This article briefly surveys a range of broad categories of views in metaethics and both catalogues some of the principal issues faced by each in the philosophy of language, as well as how those arise out of their answers to more basic questions in the philosophy of language. I make no claim to completeness, only to raising a variety of important issues. (shrink)

I examine two recent books by analytic philosophers that address the underexplored topic of whether the meaning of life depends on the existence of a supernatural realm including God and a soul. John Cottingham’s On the Meaning of Life defends a supernaturalist conception of life’s meaning, whereas Kurt Baier’s Problems of Life and Death defends the opposite, naturalist perspective. I show that their respective arguments are worth serious consideration, indicate some potential weaknesses in them, and suggest some other argumentative strategies (...) that those interested in this fascinating topic might pursue elsewhere in more depth. (shrink)

My aim is to challenge recent attempts at reconciling moral realism and naturalism by pushing ethical naturalists into a dilemma. According to one horn of the dilemma, ethical naturalists must either build unique facts and properties about divergent social structures into their subvenient sets of natural facts and properties, and so jeopardize the objectivity of moral truths, or insist, in the face of all possible worlds in which people have different moral beliefs than ours, that they are all mistaken—this despite (...) the fact that the belief-forming mechanism responsible for their moral beliefs was never concerned with the truth of those beliefs in the first place. This will bring me to suggest that moral properties might only weakly supervene upon natural phenomena. But, according to the other horn of the dilemma, weak supervenience is a defeater for moral knowledge. (shrink)

Psychopaths pose a challenge to those who make claims about the strength of moral assessments. These individuals are entirely unmoved by the moral rules that they articulate and purportedly espouse. Psychopaths appear rationally intact but are emotionally broken. In some cases, they commit horrendous crimes yet show no guilt, no remorse. Sentimentalists claim that the empirical evidence about psychopaths’ affective deficits supports that moral judgment is rooted in emotion and that psychopaths do not make genuine moral judgments—they can’t. Here, I (...) challenge an explanation of psychopathy that indicts psychopaths’ emotional impairments alone. I conclude that there are rational requirements for moral motivation and that psychological and neuroscientific research support that psychopaths do not make the grade. (shrink)