Normative naturalism holds that normative properties are identical with, or reducible to, natural properties. Various challenges to naturalism focus on whether it can make good on the idea that normative concepts can be used in systematically different ways and yet have the same reference in all contexts of use. In response to such challenges, some naturalists have proposed that questions about the reference of normative terms should be understood, at least in part, as normative questions that can be settled through (...) normative inquiry. In this paper I have two goals. First, I argue that these naturalist proposals do not yet allow for radical disagreement on normative matters, or at least do not explain how such disagreement is possible. Secondly, I argue that, in order to account for radical disagreement, naturalists should not only treat normative reference as a normative issue but also adopt a non-representationalist account of normative concepts, on which such concepts are individuated through their practical role. I illustrate this point by showing how a view that combines naturalism and expressivism about normative discourse can vindicate the elasticity of normative concepts, their referential stability, and the objectivity of normative truths. (shrink)

Controversy about the credibility of normative realism is endemic to contemporary metaethics. Some take realism to be “obviously, the default position,” while others, to put it mildly, do not., In the face of such persistent controversy, it can be valuable to step back from the myriad arguments for and against realism, and seek to understand the challenges that face this view in their deepest and most general form. This paper aims to achieve this deeper understanding with respect to a pair (...) of familiar challenges to normative realism in the philosophy of mind. (shrink)

The purpose of this paper is to conceptualize and explore what I shall call the Common Subject Problem for ethics. The problem is that there seems to be no good answer to what property everyone who makes moral claims could be talking and thinking about. The Common Subject Problem is not a new problem; on the contrary, I will argue that it is one of the central animating concerns in the history of both metaethics and normative theory. But despite its (...) importance, the Common Subject Problem is essentially invisible on many contemporary ways of carving up the problems of metaethics and normative ethical theory. My aim, therefore, is to make progress – in part by naming the problem, but also by beginning to sketch out the contours of what gives the problem its force, by distinguishing between different paths of response to the problem and assessing some of their chief merits, and finally, by distinguishing the Common Subject Problem from another problem with which it has come to be conflated. This nearby problem is the Moral Twin Earth Problem. Whereas the Common Subject Problem is a problem about what property ‘wrong’ could refer to, the Moral Twin Earth Problem is a problem about how ‘wrong’ could refer to it. The upshot of the paper, therefore, is to rescue one of the historically significant problems in normative ethics and metaethics – a problem that is essentially about normative semantics – from the illusion that has persisted over the last twenty years that it is really, somehow, a problem about metasemantics. Once we have reclaimed this problem, we can see that it could still be a problem even if there are no distinctively metasemantic problems in metaethics at all, that it is a problem faced by a wider variety of views, and that the space of possible solutions is much wider and more interesting for normative theory, moral psychology, and moral epistemology. (shrink)

Many philosophers think that moral objectivism is supported by stable features of moral discourse and thinking. When engaged in moral reasoning and discourse, people behave ‘as if’ objectivism were correct, and the seemingly most straightforward way of making sense of this is to assume that objectivism is correct; this is how we think that such behavior is explained in paradigmatically objectivist domains. By comparison, relativist, error-theoretic or non-cognitivist accounts of this behavior seem contrived and ad hoc. After explaining why this (...) argument should be taken seriously (recent arguments notwithstanding), I argue that it is nevertheless undermined by considerations of moral disagreement. Even if the metaphysical, epistemic and semantic commitments of objectivism provide little or no evidence against it, and even if the alternative explanations of ‘objectivist’ traits of moral discourse and thinking are speculative or contrived, objectivism is itself incapable of making straightforward sense of these traits. Deep and widespread moral disagreement or, rather, the mere appearance of such disagreement, strongly suggests that the explanations operative in paradigmatically objective discourse fail to carry over to the moral case. Since objectivism, no less than relativism, non-cognitivism and error-theories, needs non-trivial explanations of why we behave ‘as if’ objectivism were correct, such behavior does not presently provide reason to accept objectivism. (shrink)

Throughout his career, Derek Parfit made the bold suggestion, at various times under the heading of the "Normativity Objection," that anyone in possession of normative concepts is in a position to know, on the basis of their competence with such concepts alone, that reductive realism in ethics is not even possible. Despite the prominent role that the Normativity Objection plays in Parfit's non-reductive account of the nature of normativity, when the objection hasn't been ignored, it's been criticized and even derided. (...) We argue that the exclusively negative attention that the objection has received has been a mistake. On our reading, Parfit's Normativity Objection poses a serious threat to reductivism, as it exposes the uneasy relationship between our a priori knowledge of a range of distinctly normative truths and the typical package of semantic commitments that reductivists have embraced since the Kripkean revolution. (shrink)

This paper presents two cases demonstrating that theories allowing the environment to partially determine the content of moral concepts provide incorrect truth-conditions for moral terms. While typical Moral Twin Earth cases seek to establish that these theories fail to account formoral disagreement, neither case here essentially involves interpersonal disagreement. Both involve a single person retaining moral beliefs despite recognizing actual or potential mismatches with the purportedly content-determining facts. This lets opponents of such theories grant objections that standard Moral Twin Earth (...) cases fail to demonstrate disagreement, and argue more straightforwardly that they generate implausible truth-conditions for moral claims. (shrink)

The Twin Earth thought experiment invites us to consider a liquid that has all of the superficial properties associated with water (clear, potable, etc.) but has entirely different deeper causal properties (composed of “XYZ” rather than of H2O). Although this thought experiment was originally introduced to illuminate questions in the theory of reference, it has also played a crucial role in empirically informed debates within the philosophy of psychology about people’s ordinary natural kind concepts. Those debates have sought to accommodate (...) an apparent fact about ordinary people’s judgments: Intuitively, the Twin Earth liquid is not water. We present results from four experiments showing that people do not, in fact, have this intuition. Instead, people tend to have the intuition that there is a sense in which the liquid is not water but also a sense in which it is water. We explore the implications of this finding for debates about theories of natural kind concepts, arguing that it supports views positing two distinct criteria for membership in natural kind categories – one based on deeper causal properties, the other based on superficial, observable properties. (shrink)

This paper offers a simple response to the Moral Twin Earth (MTE) objection to Naturalist Moral Realism (NMR). NMR typically relies on an externalist metasemantics such as a causal theory of reference. The MTE objection is that such a theory predicts that terms like ‘good’ and ‘right’ have a different reference in certain twin communities where it’s intuitively clear that the twins are talking about the same thing when using ‘good’. I argue that Boyd’s causal regulation theory, the original target (...) of the MTE objection, was never vulnerable to this objection. The theory contains an epistemic constraint on reference which implies that either the property that causally regulates uses of ‘good’ isn’t different for the twin communities or, in scenarios where the reference is different, the communities diverge in ways where it’s not intuitively clear that ‘good’ has the same reference for them. (shrink)

Metaethical realists disagree about the nature of normative properties. Naturalists think that they are ordinary natural properties: causally efficacious, a posteriori knowable, and usable in the best explanations of natural and social sciences. Non-naturalist realists, in contrast, argue that they are sui generis: causally inert, a priori knowable and not a part of the subject matter of sciences. It has been assumed so far that naturalists can explain causally how the normative predicates manage to refer to normative properties, whereas non-naturalists (...) are unable to provide equally satisfactory metasemantic explanations. This article first describes how the previous non-naturalist accounts of reference fail to tell us how the normative predicates could have come to refer to the non-natural properties rather than to the natural ones. I will then use the so-called qua-problem to show how the causal theories of reference of naturalists also fail to fix the reference of normative predicates to unique natural properties. Finally, I will suggest that, just as naturalists need to rely on the non-causal mechanism of reference magnetism to solve the previous problem, non-naturalists, too, can rely on the very same idea to respond to the pressing metasemantic challenges that they face concerning reference. (shrink)

This chapter has two sections, each focusing on a distinct way in which ethical disagreement and variations in ethical judgment matter for theories of ethical thought and talk. In the first section, we look at how the variation poses problems for both cognitivist and non-cognitivist ways of specifying the nature of ethical judgments. In the second, we look at how disagreement phenomena have been taken to undermine cognitivist accounts, but also at how the seeming variation in cognitive and non-cognitive contents (...) between parties of deep ethical disagreement challenges both cognitivist and non-cognitivist accounts of disagreement itself. (shrink)

In order to rebut G. E. Moore’s open question argument, ethical naturalists adopt a theory of direct reference for our moral terms. T. Horgan and M. Timmons have argued that this theory cannot be applied to moral terms, on the ground that it clashes with competent speakers’ linguistic intuitions. While Putnam’s Twin Earth thought experiment shows that our linguistic intuitions confirm the theory of direct reference, as applied to ‘water’, Horgan and Timmons devise a parallel thought experiment about moral terms, (...) in order to show that this theory runs against our linguistic intuitions about such terms. My claim is that the Horgan–Timmons argument does not work. I concede that their thought experiment is a good way to test the applicability of the theory of direct reference to moral terms, and argue that the upshot of their experiment is not what they claim it is: our linguistic intuitions about Moral Twin Earth are parallel to, not different from, our intuitions about Twin Earth. (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)

An encyclopedia entry on the issue of whether morality is reducible -- that is, whether moral facts are identical to facts that can be expressed in non-moral terms.

Moral non-cognitivists hope to explain the nature of moral agreement and disagreement as agreement and disagreement in non-cognitive attitudes. In doing so, they take on the task of identifying the relevant attitudes, distinguishing the non-cognitive attitudes corresponding to judgements of moral wrongness, for example, from attitudes involved in aesthetic disapproval or the sports fan’s disapproval of her team’s performance. We begin this paper by showing that there is a simple recipe for generating apparent counterexamples to any informative specification of the (...) moral attitudes. This may appear to be a lethal objection to non-cognitivism, but a similar recipe challenges attempts by non-cognitivism’s competitors to specify the conditions underwriting the contrast between genuine and merely apparent moral disagreement. Because of its generality, this specification problem requires a systematic response, which, we argue, is most easily available for the non-cognitivist. Building on premisses congenial to the non-cognitivist tradition, we make the following claims: (1) In paradigmatic cases, wrongness-judgements constitute a certain complex but functionally unified state, and paradigmatic wrongness-judgements form a functional kind, preserved by homeostatic mechanisms. (2) Because of the practical function of such judgements, we should expect judges’ intuitive understanding of agreement and disagreement to be accommodating, treating states departing from the paradigm in various ways as wrongness-judgements. (3) This explains the intuitive judgements required by the counterexample-generating recipe, and more generally why various kinds of amoralists are seen as making genuine wrongness-judgements. (shrink)

Normative realists might be assumed to have few worries about semantics. After all, a realist might initially hope to simply adopt the best semantic theory about ordinary descriptive language. However, beginning with the non-cognitivist appropriation of the open question argument, a number of philosophers have posed serious objections to the realist’s ability to offer a plausible semantic theory. This paper introduces the two most influential semantic challenges to normative realism: the open question argument, and the Moral Twin Earth argument. It (...) explains the major replies to these challenges offered by realists, and locates these challenges within the broader debate over what sort of semantic theories might be plausible candidates for a normative realist to adopt. (shrink)

Moral realists can, and should, allow that the truth-conditional content of moral judgments is in part attitudinal. I develop a two-dimensional semantics that embraces attitudinal content while preserving realist convictions about the independence of moral facts from our attitudes. Relative to worlds “considered as counterfactual,” moral terms rigidly track objective, response-independent properties. But relative to different ways the actual world turns out to be, they nonrigidly track whatever properties turn out to be the objects of our relevant attitudes. This theory (...) provides realists with a satisfactory account of Moral Twin Earth cases and an improved response to Blackburn’s supervenience argument. (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)

At the beginning of the twentieth century, G. E. Moore’s open question argument convinced many philosophers that moral statements were not equivalent to statements made using non- moral or descriptive terms. For any non- moral description of an object or object it seemed that competent speakers could without confusion doubt that the action or object was appropriately characterized using moral terms such as ‘good’ or ‘right’. The question of whether the action or object so described was good or right was (...) always open, even to competent speakers. In the absence of any systematic theory to explain the possibility of synthetic as opposed to analytic identities, many were convinced this demonstrated that moral properties could not be identified with any natural properties. Thus Moore and others concluded that moral properties such as goodness were irreducible sui generis properties, not identical to natural. (shrink)

John Hare has proposed “prescriptive realism” in an attempt to stake out a middle-ground position in the twentieth century Anglo-American debates concerning metaethics between substantive moral realists and antirealist-expressivists. The account is supposed to preserve both the normativity and objectivity of moral judgments. Hare defends a version of divine command theory. The proposal succeeds in establishing the middle-ground position Hare intended. However, I argue that prescriptive realism can be strengthened in an interesting way.

Mark Timmons and Terry Horgan have argued that the new moral realism, which rests on the causal theory of reference, is untenable. While I do agree that the new moral realism is untenable, I do not think that Timmons and Horgan have succeeded in showing that it is. I will lay out the case for new moral realism and Horgan and Timmons’ argument against it, and then argue that their argument fails. Further, I will discuss Boyd’s semantic theory as well (...) as attempts to improve upon it, raise serious problems for these semantic accounts, and suggest an alternative view that accounts for our use of moral terms. (shrink)

Cornell realism (CR), a prominent meta-ethical position that has emerged since the last decades of the twentieth century, proposes a non-reductionist naturalistic account of moral properties and facts. This paper argues that the best version of CR’s chosen methodology for arriving at justified moral beliefs must be seen as a variant of reflective equilibrium. In comparison to the traditional versions, our proposal offers a ‘social’ reinterpretation of reflective equilibrium in delineating CR’s epistemology. We argue that it satisfactorily accounts for objectivity (...) and calls for the inclusion of the social nature of both moral and scientific inquiries. Emphasising the social dimension of their epistemological account also nudges debates in metaethics into incorporating the much-needed social dimension while dealing with questions of moral beliefs and facts that have been of CR’s concern. (shrink)

The Twin Earth thought experiment invites us to consider a liquid that has all of the superficial properties associated with water (clear, potable, etc.) but has entirely different deeper causal properties (composed of “XYZ” rather than of H2O). Debates about natural kind concepts have sought to accommodate an apparent fact about ordinary people's judgments: Intuitively, the Twin Earth liquid is not water. We present results showing that people do not have this intuition. Instead, people tend to judge that there is (...) a sense in which the liquid is not water but also a sense in which it is water. (shrink)

Consider orthodox motivational judgment internalism: necessarily, A’s sincere moral judgment that he or she ought to φ motivates A to φ. Such principles fail because they cannot accommodate the amoralist, or one who renders moral judgments without any corresponding motivation. The orthodox alternative, externalism, posits only contingent relations between moral judgment and motivation. In response I first revive conceptual internalism by offering some modifications on the amoralist case to show that certain community-wide motivational failures are not conceptually possible. Second, I (...) introduce a theory of moral motivation that supplements the intuitive responses to different amoralist cases. According to moral judgment purposivism (MJP), in rough approximation, a purpose of moral judgments is to motivate corresponding behaviors such that a mental state without this purpose is not a moral judgment. MJP is consistent with conceptual desiderata, provides an illuminating analysis of amoralist cases, and offers a step forward in the internalist-externalist debates. (shrink)

Christine Korsgaard has attempted to defend a distinct approach to metaethics – Neo-Kantian Constructivism. Not only does she present a positive case for her own view, she also attacks existing metaethical positions and even the disctinctions that metaethics has traditionally relied on. This thesis is a sustained examination of this position. I consider whether Korsgaard can legitimately claim to be offering a metaethical position at all, providing her with some defence against the scepticism of some metaethicists. I also examine her (...) attacks on traditional metaethical positions. I argue that her attack on moral realism can be avoided if the realism on offer takes a particular form. In the case of expressivism I claim that Korsgaard’s attack, though not fully developed in her work, motivates an examination of contemporary hybrid-expressivist theories. I argue that these are, as of yet, no advance over their non-hybrid cousins. Finally I examine Korsgaard’s own position, attempting to make it clearer by combining her claims with a framework developed by Crispin Wright for judgement-dependent qualities. This gives Korsgaard her best chance of a distinctive metaethical position. Ultimately, though, the Neo-Kantian approach to morality fails. (shrink)

Morally progressive social changes seem to have taken place with the onset of democratic governance, the abolition of slavery, the rise of gender equality, and other developments. This essay attempts to demonstrate that natural and objective moral facts are a plausible cause of some morally progressive social changes. Since this hypothesis is a version of naturalistic moral realism, I call it the Naturalist-Realist Hypothesis. To support the NRH, I argue that objective moral facts are natural facts pertaining to the impartial (...) promotion of well-being within a population of agents facing a social dilemma. I then describe a mechanism to explain how natural and objective moral facts so construed may cause some morally progressive social changes. I suggest that the NRH is a credible hypothesis because it is compatible with empirical findings from research on the evolution of moral cognition and on the sociology of mass political movements. (shrink)

ABSTRACT Moral Naturalism is the view that moral judgments aim at describing moral facts and that these are ordinary garden-variety natural facts. Moral Naturalism has trouble accounting for the intuition that we cannot outsource moral judgments, i.e., we cannot ground a moral conviction that p on the fact that a reliable moral adviser holds that p. There have been, however, several attempts to explain this intuition away or to discredit the intuition pumps that bring it forward. I argue that moral (...) naturalists are not in a position to deny this intuition. Moral Naturalism embodies a conception of the minimal conditions for someone to qualify as capable of making moral judgments; among these conditions is the acknowledgment of the supervenience of the moral on the non-moral; given the naturalist's conception of what it takes for someone to be capable of moral judgment, if we allow agents to outsource their moral judgments we come to situations in which the convictions of moral agents do not comply with the acknowledgment of moral supervenience. The naturalist must, therefore, deny the possibility of moral outsourcing. Moral Naturalism, then, faces the problem of making sense of the ban on moral outsourcing. (shrink)

According to many philosophers, the notion of belief is constitutively normative ; Shah ; Shah and Velleman (); Gibbard (); Wedgwood ). In a series of widely discussed papers, Terence Horgan and Mark Timmons have developed an ingenious ‘Moral Twin Earth’ argument against ‘Cornell Realist’ metaethical views which hold that moral terms have synthetic natural definitions in the manner of natural kind terms. In this paper we shall suggest that an adaptation of the Moral Twin Earth argument to the doxastic (...) case – Doxastic Twin Earth – provides new evidence for the normativity of belief. (shrink)

This dissertation investigates the plausibility of metaethical relativism, or more specifically, what I call “moral truth-value relativism”: the idea that the truth of a moral statement or belief depends on who utters or has it, or who assesses it. According to the most prevalent variants of this view in philosophical literature – “standard relativism” – the truth-values are relative to people’s moralities, often understood as some subset of their affective or desirelike attitudes. Standard relativism has two main contenders: absolutism – (...) the view that the truth-values of moral statements and beliefs do not vary in that way – and non-cognitivism – the view that moral judgements do not have truth-values, since they express affective or desire-like attitudes rather than beliefs. Almost the entire dissertation concerns the plausibility of standard relativism in contrast to absolutism. Part 1 examines first the two main arguments for standard relativism: that it accounts for the connection between moral judgements and motivation (chapter 2), and for the prevalence of diversity of moral opinion (chapter 3). Then the most common objection is considered: that it is inconsistent with the existence of genuine moral disagreements (chapter 4). I argue that these arguments are inconclusive. Both relativism and absolutism can account for the features discussed. Part 2 focuses on the fact that different people have different strongly held intuitions about the relative or absolute nature of morality. I argue that given a common methodological approach in philosophy and metaethics, which takes such intuitions as evidence of correct analyses, this difference in intuitions suggests that neither a relativist nor absolutist analysis can be correct for everyone’s moral judgements. I argue that this result holds both given semantic internalism (chapter 6) and given semantic externalism (chapter 7). To get one single analysis of everyone’s moral judgements we would have to abandon the intuitionbased methodology. In chapter 8, however, I argue that we can maintain this methodology if we accept analysis pluralism, the view that different analyses hold for different people’s moral judgements. (shrink)

Nearly 30 years ago, Terry Horgan and Mark Timmons published a now- popular article that combines Hilary Putnam’s Twin Earth scenario with G.E. Moore’s open question argument in an effort to show that moral naturalism – the view that moral facts are at bottom ordinary, natural facts of some sort – is probably false. Responses to Horgan and Timmons’s “revised open question argument” have been legion, but surprisingly, no one has attempted to test the core assumption upon which the argument (...) is based; namely, that competent language users univocally treat natural kind-terms as rigid designators. Here, I present evidence that the intuitions of competent English speakers are not as univocal as Horgan and Timmons need them to be to ground their argument against moral naturalism. I also briefly sketch a way that the moral naturalist can respond even if competent language speakers do treat natural-kind terms in the way that Horgan and Timmons suggest. (shrink)

This thesis will explain in detail two closely related but jointly defensible moral realist positions. I show how each position responds to the initial dilemma of whether moral judgments are propositions. Following this discussion, I defend this combined position against an objection that the position is inherently contradictory. I conclude that one can coherently maintain both positions without a contradiction.

This article is concerned with Mark Timmons and Terence Horgan's influential twin - earth argument against the semantic views of that school of thought in metaethics that has come to be known as “Cornell realism”. The semantic views of Cornell realism have been developed in greatest detail by Richard Boyd, and it is Boyd's view that is targeted by Timmons and Horgan. In the first part of the article, the twin - earth argument is introduced and two versions of it (...) are disentangled. Thereafter, a defensive strategy is developed against the most powerful version of the argument. The conclusion of the article is that Timmons and Horgan's argument does not succeed in showing that the semantic views associated with Cornell realism are false. (shrink)

Perhaps the two main contemporary formulations of ethical naturalism – Synthetic Ethical Naturalism (SEN) and Analytical Descriptivism – seem to conflict with plausible views about cases where moral debate and disagreement is possible. Both lack safeguards to avoid divergence of reference across different communities, which can scupper the prospects for genuine moral disagreement. I explore the prospects for supplementing both views with Lewis's notion of eligibility, arguing that this can solve the problem for a modified form of analytical descriptivism, and (...) for a modified form of SEN too (though perhaps more controversially). I close by considering the appropriateness of using the notions of eligibility and joint-carving in ethics. (shrink)