Moral Realism

In the essays which make up The Sovereignty of Good, Iris Murdoch gives us a picture of moral life in which ‘the metaphor of vision [is] almost irresistibly suggested’. This chapter aims to clarify the role played by the metaphor of vision in Murdoch’s philosophical thinking. I’ll examine two different things which might be meant by the term ‘moral vision’: vision of moral things or vision which is itself moral. The suggestion will be that whilst both capture something important about (...) Murdoch’s work, each may mislead about what is distinctive in her views. For Murdoch, I shall suggest, there is no distinctively moral vision. There is only vision: a loving gaze directed upon the reality of others. (shrink)

Is suffering really bad? The late Derek Parfit argued that we all have reasons to want to avoid future agony and that suffering is in itself bad both for the one who suffers and impersonally. Nietzsche denied that suffering was intrinsically bad and that its value could even be impersonal. This paper has two aims. It argues against what I call ‘Realism about the Value of Suffering’ by drawing from a broadly Nietzschean debunking of our evaluative attitudes, showing that a (...) recently influential response to the debunking challenge (the appeal to phenomenal introspection) fails. It also argues that a Nietzschean approach is well suited to support the challenge and is bolstered by the empirical literature. As strangers to ourselves, we cannot know whether suffering is really intrinsically bad for us. (shrink)

Debates about the implications of empirical research in the natural and social sciences for normative disciplines have recently gained new attention. With the widening scope of neuroscientific investigations into human mental activity, decision-making and agency, neuroethicists and neuroscientists have extensively claimed that results from neuroscientific research should be taken as normatively or even prescriptively relevant. In this chapter, I investigate what these claims could possibly amount to. I distinguish and discuss three readings of the thesis that neuroscientific evidence has normative (...) implications: an action-theoretic, an epistemological, and a metaphysical reading. I conclude that the action-theoretic reading has the most direct normative consequences, even though it is limited to the questions of whether some pre-established moral norms can be realized by individual agents. In contrast, in applying the other two readings, neuroscience can only be said to have normative implications in a very indirect way and only under the condition of making contested metaethical assumptions. All in all, the room for inferring concrete. (shrink)

Evolutionary debunking accounts claim that the evolutionary origins of our moral beliefs provide a problem for moral realists because evolutionary explanations of our moral beliefs have more plausibility than realist accounts. A certain kind of response, which I term ‘rationalist’ offers a dual response to evolutionary debunking. First, they offer a supposedly plausible account of how we acquire objective moral knowledge through use of our rationality. Second, they claim that certain moral beliefs are not amenable to evolutionary explanation. I argue (...) that neither of these putative advantages survives further scrutiny. An appeal to ‘rational insight’, although it makes reference to a somewhat familiar faculty, gives no useful explanation of how we come to know moral facts. Moreover, the supposedly problematic moral beliefs are in fact amenable to evolutionary explanation. As such, rationalist accounts are, like other realist accounts, on the wrong side of the balance of justification against evolutionary debunking. (shrink)

A familiar claim, meant as a challenge to moral knowledge, is that we can credibly accept putative moral facts just in case they explain natural facts. This paper critically addresses Elizabeth Tropman’s response to a version of that claim. Her response has interest partly because it falls within, and extends, an influential philosophical tradition – that of trying to expose (some) skeptical challenges as spurious or ill-conceived. Also, Tropman’s target is not just any version of the claim just mentioned. It (...) is Gilbert Harman’s classic version, according to which putative moral facts must earn credibility by explaining the formation of moral beliefs. This version has wide influence, and variations of it can arise in many areas. Tropman’s response is thus well worth attention. (shrink)

The essay introduces Michael Quante's pragmatistic anthropology, focusing on three main ethical issues, namely: (1) the problem of realism, (2) the problem of particularism, and (3) the question about personal identity and its social conditions. By also emphasizing Quante's historical-philosophical debts, the essay thus aims to present the project of the pragmatistic anthropology as a worthwhile alternative to some of the fundamental assumptions of modern ethics. The essay is the Editor's Introduction to the volume: Michael Quante, "Antropologia pragmatista. Padova Lectures" (...) (Padova University Press, 2020). (shrink)

The relation between normativity and reality represents one of the most important and challenging issues that metaethics has to deal with. Both Hegel and McDowell have faced the problem in an original way, by reaching philosophical positions that reveal interesting similarities. The core of their proposals, in fact, is the idea that both the extremes of ethical antirealism (for which norms are completely dependent on subjectivity) and strong ethical realism (for which norms are completely independent from subjectivity) provide unsatisfying answers. (...) My aim is to sketch some outlines for a comparison between Hegel’s and McDowell’s metaethical solutions, in order to consider their affinities and divergences. (shrink)

As with all other moral realists, so-called relaxed moral realists believe that there are moral truths. Unlike metaphysical moral realists, they do not take themselves to be defending a substantively metaphysical position when espousing this view, but to be putting forward a moral thesis from within moral discourse. In this paper, I employ minimalism about truth to examine whether or not there is a semantic analysis of the claim ‘There are moral truths’ which can support this moral interpretation of one (...) of moral realism’s key theses. My results are both discouraging and encouraging: Whilst I will argue that the claim ‘There are moral truths’ cannot be shown to be both moral and capable of demarcating relaxed realism from irrealism on the basis of a convincing semantic analysis that would be compatible with relaxed commitments, the moral interpretation of moral realism can be secured by modifying our understanding of what distinguishes relaxed realism from error-theoretic irrealism. Yet, we will see that this moral interpretation of moral realism does not ‘tumble out’ of the semantics provided for its central claims. Rather, hard work needs to be done before we can fully relax. (shrink)

Focusing on Erik Wielenberg’s metaphysic of morals, I argue that his moral Platonism is, given the presumption against the existence of abstract objects, unmotivated. Moreover, Godless Normative Realism is implausible in light of the mysterious causal relations said to obtain between concrete objects and moral abstracta. His appeals to theism in order to motivate such causal connections is nugatory. If Wielenberg walks back his moral Platonism, then his metaphysics of morals collapses and Godless Normative Realism becomes explanatorily vacuous.

In Robust Ethics, I defend a nontheistic version of moral realism according to which moral properties are sui generis, not reducible to other kinds of properties and objective morality requires no foundation external to itself. I seek to provide a plausible account of the metaphysics and epistemology of the robust brand of moral realism I favor that draws on both analytic philosophy and contemporary empirical moral psychology. In this paper, I respond to some objections to my view advanced by William (...) Craig, Mark Murphy, Tyler McNabb, and Adam Johnson. (shrink)

Relaxed realists hold that there are deep differences between moral truths and the truths studied by the empirical sciences, but they deny that these differences raise troubling metaphysical or epistemological questions about moral truths. On this view, although features such as causal inefficacy, perceptual inaccessibility, and failure to figure in the best explanations of our empirical beliefs would raise pressing skeptical concerns were they claimed to characterize some aspect of physical reality, the same is not true when it comes to (...) the moral domain. This chapter raises some doubts about this general picture of morality and some prominent ways of defending it. First, it takes up a comparison that is frequently invoked by relaxed realists, and one on which they often place a great deal of weight: a comparison between irreducibly normative properties and truths on the one hand, and mathematical properties and truths on the other. It argues that this comparison is much less favorable to the relaxed realist’s cause than is often thought. It then offers an extended critique of a particularly vigorous and sustained presentation of relaxed realism: that offered by Ronald Dworkin in Justice for Hedgehogs. (shrink)

Several leading moral philosophers have recently proposed a soft version of moral realism, according to which moral facts—though it is reasonable to postulate them—cannot metaphysically explain other facts (Dworkin 2011; Parfit 2011; Scanlon 2014). However, soft moral realism is faced with what I call the “Hard Problem”, namely, the problem of how this soft version of moral metaphysics could accommodate moral knowledge. This paper reconstructs three approaches to solving the Hard Problem on behalf of the soft realist: the autonomy approach, (...) the intuitionist approach, and the third-factor approach. I then argue that none of them is successful. (shrink)

In this paper, I consider the relationship between Matthew Kramer’s moral realism as a moral doctrine and expressivism, understood as a distinctly non-representationalist metasemantic theory of moral vocabulary. More precisely, I will argue that Kramer is right in stating that moral realism as a moral doctrine does not stand in conflict with expressivism. But I will also go further, by submitting that advocates of moral realism as a moral doctrine must adopt theories such as expressivism in some shape or form. (...) Accordingly, if you do not want to accept positions such as expressivism, you cannot defend moral realism as a moral doctrine. Similarly, if you want moral realism to compete with expressivism, you cannot accept Kramer’s take on moral realism either. Hence, moral realism as a moral doctrine stands and falls with theories such as expressivism, or so I shall argue. (shrink)

According to “debunking arguments,” our moral beliefs are explained by evolutionary and cultural processes that do not track objective, mind-independent moral truth. Therefore (the debunkers say) we ought to be skeptics about moral realism. Huemer counters that “moral progress”—the cross-cultural convergence on liberalism—cannot be explained by debunking arguments. According to him, the best explanation for this phenomenon is that people have come to recognize the objective correctness of liberalism. Although Huemer may be the first philosopher to make this explicit empirical (...) argument for moral realism, the idea that societies will eventually converge on the same moral beliefs is a notable theme in realist thinking. Antirealists, on the other hand, often point to seemingly intractable cross-cultural moral disagreement as evidence against realism (the “argument from disagreement”). This paper argues that the trend toward liberalism is susceptible to a debunking explanation, being driven by two related non-truth-tracking processes. First, large numbers of people gravitate to liberal values for reasons of self-interest. Second, as societies become more prosperous and advanced, they become more effective at suppressing violence, and they create conditions where people are more likely to empathize with others, which encourages liberalism. The latter process is not truth tracking (or so this paper argues) because empathy-based moral beliefs are themselves susceptible to an evolutionary debunking argument. Cross-cultural convergence on liberalism per se does not support either realism or antirealism. (shrink)

Are moral terms semantically plastic—that is, would very slight changes in our patterns of use have shifted their meanings? This is a delicate question for moral realists. A 'yes' answer seems to conflict with the sorts of intuitions that support realism; but a 'no' answer seems to require a semantics that involves hefty metaphysical commitments. This tension can be illustrated by thinking about how standard accounts of vagueness can be applied to the case of moral terms, and also by considering (...) how realists should respond to the Moral Twin Earth problem. After presenting the puzzle, I will argue that moral realists can accept the semantic plasticity of moral expressions while accounting for contrary intuitions in a way that is nearly cost-free. (shrink)

The main aim of this paper is to identify a type of fact-given warrant for action that is distinct from reason-based justification for action and defend the view that there are two types of practical warrant. The idea that there are two types of warrant is familiar in epistemology, but has not received much attention in debates on practical normativity. On the view that I will defend, normative facts, qua facts, give rise to entitlement warrant for action. But they do (...) not, qua facts, give rise to reason-based warrant. Normative practical reasons, I will argue, are true propositions that represent fact-based favouring and that are made true by normative facts. (shrink)

In his new book Unbelievable Errors, Bart Streumer argues that there is no way around the result that all metaethical views other than the error theory either fail for the same reasons as metaphysical normative realism, or for the same reasons as expressivism. In this contribution, I seek to show that this is false: We can eschew this result by ‘relaxing’ about normative truths. Even if Streumer were right about the fate of metaphysical normative realism and expressivism, then, relaxed realists (...) can avoid the problems he raises. (shrink)

This is a review of Eklund's book. It discusses his suggestion that "ardent realists" use the practical profiles of normative concepts to A) explain what it is for a concept to be normative, B) fix reference, and C) provide an extensional theory of normative properties. I argue that those sympathetic to ardent realism will be happier to focus on the way in which normativity presents itself to cognition, particularly that presentation of inherent, authoritative guidance, and whether that 1) explains what (...) it is for a concept to be normative, 2) fixes reference, 3) aptly characterizes the nature of normativity in the world, and perhaps 4) explains why normative thoughts have the Eklund-style normative roles—the practical profiles of things like motivation, preference, and intention—that they have. (shrink)

Katarzyna de Lazari-Radek and Peter Singer have recently provided an evolutionary argument for utilitarianism. They argue that most of our deontological beliefs were shaped by evolution, from which they conclude that these beliefs are unjustified. By contrast, they maintain that the utilitarian belief that everyone’s well-being matters equally is immune to such debunking arguments because it wasn’t similarly influenced. However, Guy Kahane remarks that this belief lacks substantial content unless it is paired with an account of well-being, and he adds (...) that utilitarian beliefs about wellbeing—e.g. the belief that pleasure is good and pain is bad—were probably shaped by evolution. Logically, de Lazari-Radek and Singer should therefore reject these beliefs along with the deontological beliefs that evolved. The present paper is a defense of their argument. After considering a number of unsuccessful replies to Kahane’s objection, I put forward a more promising solution: de Lazari-Radek and Singer should combine their objectivist view in metaethics with a subjectivist account of well-being, such as the desire theory. Such a hybrid account would tackle Kahane’s challenge because subjective accounts of value are immune from evolutionary debunking arguments. And it would be compatible with utilitarianism, which doesn’t fit very well with metaethical subjectivism. Before concluding, I deal with two concerns that this solution might raise: I argue that the desire theory is actually subjective enough to escape Kahane’s objection, and I deny that retreating to the combination of ethical objectivism and prudential subjectivism is ad hoc. (shrink)

Some moral realists have defended moral realism on the basis of the purported fact that moral facts figure as components in some good explanations of non-moral phenomena. In this paper I explore the relationship between theism and this sort of explanationist defense of moral realism. Theistic explanations often make reference to moral facts, and do so in a manner which is ineliminable in an important respect – remove the moral facts from those explanations, and they suffer as a result. In (...) this respect theistic moral explanations seem to differ from the sorts of moral explanations typically offered by moral explanationists. (shrink)

In this essay I examine the moral message presented in Woody Allen's film, "Crimes and Misdemeanors.".

This book offers a ground-up defense of objective morality, drawing inspiration from a wide range of philosophers, including John Locke, Arthur Schopenhauer, Iris Murdoch, Nel Noddings, and David Lewis. The core claim is compassion is our capacity to perceive other creatures' pains, pleasures, and desires. Non-compassionate people are therefore perceptually lacking, regardless of how much factual knowledge they might have. Marshall argues that people who do have this form of compassion thereby fit a familiar paradigm of moral goodness. His argument (...) involves the identification of an epistemic good which Marshall dubs "being in touch". To be in touch with some property of a thing requires experiencing it in a way that reveals that property - that is, experiencing it as it is in itself. Only compassion, Marshall argues, lets us be in touch with others' motivational mental properties. -/- This conclusion about compassion has two important metaethical consequences. First, it generates an answer to the question ";Why be moral?", which has been a central philosophical concern since Plato. Second, it provides the keystone for a novel form of moral realism. This form of moral realism has a distinctive set of virtues: it is anti-relativist, naturalist, and able to identify a necessary connection between moral representation and motivation. The view also implies that there is an epistemic asymmetry between virtuous and vicious agents, according to which only morally good people can fully face reality. (shrink)

I argue that recent attempts to deflect Access Problems for realism about a priori domains such as mathematics, logic, morality, and modality using arguments from evolution result in two kinds of explanatory overkill: the Access Problem is eliminated for contentious domains, and realist belief becomes viciously immune to arguments from dispensability, and to non-rebutting counter-arguments more generally.

The aim of this article is to explore the impact of Darwinism in metaethics and dispel some of the confusion surrounding it. While the prospects for a Darwinian metaethics appear to be improving, some underlying epistemological issues remain unclear. We will focus on the so-called Evolutionary Debunking Arguments (EDAs) which, when applied in metaethics, are defined as arguments that appeal to the evolutionary origins of moral beliefs so as to undermine their epistemic justification. The point is that an epistemic disanalogy (...) can be identified in the debate on EDAs between moral beliefs and other kinds of beliefs, insofar as only the former are regarded as vulnerable to EDAs. First, we will analyze some significant debunking positions in metaethics in order to show that they do not provide adequate justification for such an epistemic disanalogy. Then, we will assess whether they can avoid the accusation of being epistemically incoherent by adopting the same evolutionary account for all kinds of beliefs. In other words, once it is argued that Darwinism has a corrosive impact on metaethics, what if its universal acid cannot be contained? (shrink)

Evolutionary debunking arguments abound, but it is widely assumed that they do not arise for our perceptual beliefs about midsized objects, insofar as the adaptive value of our object beliefs cannot be explained without reference to the objects themselves. I argue that this is a mistake. Just as with moral beliefs, the adaptive value of our object beliefs can be explained without assuming that the beliefs are accurate. I then explore the prospects for other sorts of vindications of our object (...) beliefs—which involve “bootstrapping” from our experiences as of midsized objects—and I defend bootstrapping maneuvers against a variety of objections. Finally, I argue for an explanatory constraint on legitimate bootstrapping and show how some attempts to respond to debunking arguments run afoul of the constraint. (shrink)

I consider an underappreciated problem for proponents of the Humean theory of motivation. Namely, it is unclear whether is it to be understood as a largely psychological or largely metaphysical theory. I show that the psychological interpretation of HTM will need to be modified in order to be a tenable view and, as it will turn out, the modifications required render it virtually philosophically empty. I then argue that the largely metaphysical interpretation is the only a plausible interpretation of HTM's (...) central claim that desires are necessary conditions for motivation. This interpretation also fits better with the important roles that HTM plays in both moral psychological and metaethical debates. (shrink)

The central aim of this article is to argue that Nietzsche takes his own taste, and those in the relevant sense similar to it, to enjoy a kind of epistemic privilege over their rivals. Section 2 will examine the textual evidence for an anti-realist reading of Nietzsche on taste. Section 3 will then provide an account of taste as an ‘affective evaluative sensibility’, asking whether taste so understood supports an anti-realist reading. I will argue that it does not and that (...) we should resist construing the affects, which constitute taste for Nietzsche, as no more than Humean subjective preferences. Section 4 will then consider passages in which Nietzsche makes a connection between taste and epistemic considerations, suggesting that he appears to situate the epistemic privilege of his taste in a more fundamental method of evaluative disclosure, namely pre-reflective affective responses. Finally, Section 5 will argue that we can make sense of how such affective responses could provide us with evaluative knowledge by narrowing the scope of the objects of Nietzsche’s taste to other affective-evaluative states, such that the affective responses are meta-affective evaluations. On the basis of this idea, I construct a theory of meta-affective responses providing their subjects with access to the intrinsic phenomenal value of other affective-evaluative states, and then go on to show how Nietzsche can be read as applying this theory in a number of passages. (shrink)

Yoga is a nonspeciesist liberalism, founded in a moral non-naturalism, which identifies the essence of personhood as the Lord, defined by unconservative self-governance—an abstraction from each of us that is non-proprietary. According to Yoga, the right is defined as the approximation of the regulative ideal (the Lord) and the good is the perfection of this practice, which delivers us from a life of coercion into a personal world of freedom. It is an alternative to Deontology, Consequentialism, and Virtue Ethics, which (...) provides a unitary account of moral well-being and worldly well-being. The seeming antinomy of freedom and determinism is resolved in the ethical life. I argue that Yoga provides a critical and instructive response to alternative ethical theories and the problem of collective harm. (shrink)

Vedānta has two meanings. The first is the literal sense – “End of Vedas” – and refers to the Āraṇyakas and Upaniṣads—the latter part of the Vedas. The second sense of “Vedanta” is a scholastic one, and refers to a philosophical orientation that attempts to explain the cryptic Vedānta Sūtra (Brahma Sūtra) of Bādarāyaṇa, which aims at being a summary of the End of the Vedas. In the previous module, I review the ethics of the End of the Vedas and (...) explicate the Moral Irrealism of Śaṅkara’s Advaita Vedānta, which is articulated as a commentary on the Vedānta Sūtra. In this module, I compare Rāmānuja (Viśiṣṭādvaita Vedānta) and Madhva's (Dvaita Vedānta) account of the Vedānta Sūtra. Both are moral realists. They differ on the room for freedom given the necessity of moral considerations. One value of the Vedānta approach to ethics is that it provides a non-speciesist framework to think about ethics. It allows us to understand ourselves (ātmā) and our interest in Development (Brahman) as conceptually distinct, though identical in some manner. The Advaita view is that this identity is strict. The Dvaita approach is that Development realises the results of choices of individuals, but only some, owing to their good character, are capable of taking advantage of this for their betterment. The Viśiṣṭādvaita approach of Rāmānuja suggests in contrast that each self is a microcosm of reality. Reality is Development – the genus of individual selves. Each self has Development as an essential trait, but owing to past choices (karma), this is poorly understood. Things change when the individual self understands Brahman to be its true self, for then an individual can re-direct their efforts from procuring results to self-governance by treating the personal essence of the Development (the Lord) as the explanation for improvement. (shrink)

In this lesson, I explore three areas of intersection between ethics and metaphysics: accounts of the self, the reality of value, and basic distinctions in ethical theory. I compare the account of the self as a chariot from the Kaṭha Upaniṣad (Deontology), early Buddhism from Questions of King Milinda (Consequentialism), and Plato's Phaedrus (Virtue Ethics). In each case, the metaphysical model is continuous with the moral theory of the same perspective and adopted to accommodate the moral theory. I also compare (...) debates across traditions on controversies such as: Naturalism vs. Nonnaturalism, ethics vs. action (dharma vs. karma), and the perennial question of Moral Realism. The relationship between metaphysics and ethics is not peculiar to a specific philosophical tradition. It has to do with central questions of moral philosophy. A common point that these issues converge on is the question of moral standing: what kinds of things count, and what are their properties. (shrink)

Este artículo compara los argumentos de Kant contra la deducción trascendental de la ley moral con el intento de fundamentación pragmático-trascendental de la moral propuesto por Apel. A pesar de mejorar los argumentos trascendentales kantianos, las tesis de Apel sobre la fundamentación trascendental de la moral parecen incurrir en una confusión entre la constricción de las leyes lógicas y la obligatoriedad de las normas morales, y en última instancia parecen borrar la diferencia kantiana entre razón teórica y razón práctica.

According to recent suggestions within the global pragmatism discussion, metaethical debate must be fundamentally re-framed. Instead of carving out metaethical differences in representational terms, it has been argued that metaethics should be given an inferentialist footing. In this paper, I put inferentialist metaethics to the test by subjecting it to the following two criteria for success: Inferentialist metaethicists must be able to save the metaethical differences between moral realism and expressivism, and do so in a way that employs understandings of (...) these metaethical accounts which would be acceptable to moral realists or expressivists who endorse an inferentialist theory of meaning. Two results follow from my discussion. The first concerns inferentialist metaethics more narrowly, casting doubts on inferentialists’ ability to fulfil the two criteria for success by showing that proposed metaethical demarcation attempts either meet the first criterion but violate the second, or pass the second criterion but fail the first. The second upshot pertains to the global pragmatism debate more widely, pressing the point that inferentialists have not as yet provided a convincing account of ontological commitment. (shrink)

Reductionist forms of moral realism, such as naturalist realism, are often thought immune to epistemological objections that have been raised against nonnaturalist realism in the form of reliability worries or evolutionary debunking arguments. This article establishes that reductionist realist views can only explain the reliability of our moral beliefs at the cost of incurring repugnant first-order conclusions.

'...the book is very dense with ideas...arguments concerning innumerable interesting points are always worth pondering.'-THE PHILOSOPHICAL REVIEW.

Non-skeptical robust realists about normativity, mathematics, or any other domain of non- causal truths are committed to a correlation between their beliefs and non- causal, mind-independent facts. Hartry Field and others have argued that if realists cannot explain this striking correlation, that is a strong reason to reject their theory. Some consider this argument, known as the Benacerraf–Field argument, as the strongest challenge to robust realism about mathematics, normativity, and even logic. In this article I offer two closely related accounts (...) for the type of explanation needed in order to address Field's challenge. I then argue that both accounts imply that the striking correlation to which robust realists are committed is explainable, thereby discharging Field's challenge. Finally, I respond to some objections and end with a few unresolved worries. (shrink)

Realists about practical reasons agree that judgments regarding reasons are beliefs. They disagree, however, over the question of how such beliefs motivate rational action. Some adopt a Humean conception of motivation, according to which beliefs about reasons must combine with independently existing desires in order to motivate rational action; others adopt an anti-Humean view, according to which beliefs can motivate rational action in their own right, either directly or by giving rise to a new desire that in turn motivates the (...) action. I argue that the realist who adopts a Humean model for explaining rational action will have a difficult time giving a plausible account of the role that desire plays in this explanation. I explore four interpretations of this role and argue that none allows a Humean theory to explain rational action as convincingly as an anti-Humean theory does. The first two models, in different ways, make acting on a reason impossible. The third allows this possibility, but only by positing a reason-sensitive desire that itself demands an explanation. The fourth avoids this explanatory challenge only by retreating to an empty form of the Humean view. In contrast, an anti-Humean theory can provide an intuitively plausible explanation of rational action. I conclude that the realist about reasons should adopt an anti-Humean theory to explain rational action. (shrink)