Moral Naturalism and Non-Naturalism

Robust metanormative realists think that there are irreducibly normative, metaphysically heavy normative facts. One might wonder how we could be epistemically justified in believing that such facts exist. In this paper, I offer an answer to this question: one’s belief in the existence of robustly real normative facts is epistemically justified because so believing is indispensable to being a successful inquirer for creatures like us. The argument builds on Enoch's (2007, 2011) deliberative indispensability argument for Robust Realism but avoids relying (...) on an overly pragmatic account of the sources of basic epistemic justification. Instead, I suggest that the sources of basic epistemic justification are those belief-forming methods which are indispensable for zetetically indispensable projects, that is, projects which are constitutive of being a successful inquirer for embodied, agential creatures like ourselves. (shrink)

Roger Gibson offers a defence of W.V.O. Quine’s conception of ethics as “methodologically infirm” against Owen Flanagan’s criticism. Gibson argues that Flanagan’s critique of Quinean ethics is misdirected, and that he (Flanagan) fails to establish that ethics and science (natural science) are on a methodological par. In this essay, we argue that there may actually be some sort of overemphasis in Flanagan’s argument, given its inclination to see Quine’s holism as rejecting any form of correspondence theory, yet, pace Gibson (as (...) well as Quine), this does not suggest that ethics is “methodologically infirm” in comparison with natural science. Rather, we argue that the comparative attempt between ethics and natural science is mistaken, because the two disciplines are necessarily different in goals, tasks and methods. (shrink)

Bernard Williams is universally recognised as one of the most important voices in 20th century moral and political philosophy. Yet his thought has only rarely been the subject of comprehensive analysis and interpretation: more often, attention has focused on his celebrated critiques of specific theoretical paradigms, such as the Kantian and the utilitarian ones. This book attempts to fill this gap. Considering Williams' work in its entirety, it reconstructs the particular and fascinating picture of moral philosophy that emerges from it. (...) The ideal of ethical objectivity acts as a thread running through this reconstruction. More precisely, the basic question guiding the investigation is what remains of this ideal once Williams' critique of three fundamental ideas for moral philosophy has been sifted: that of normative theory, that of ethical knowledge and that of human nature (understood as a possible basis for objective ethical prescriptions). The answer, in a nutshell, is 'very little'. But this does not imply an abandonment to relativism. Rather, the answer implies the need to become aware of the historicity of our values and to re-examine them from a peculiar point of view, both historical and philosophical, in order to assess which ones deserve our trust. As suggested in this book, in the last years of his life Williams offered many useful insights for doing this. (shrink)

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

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)

This is the second volume of a major new work in moral philosophy. It starts with critiques of Derek Parfit's work by four eminent moral philosophers, and his responses. The largest part of the volume is a self-contained monograph on normativity. The final part comprises seven new essays on Kant, reasons, and why the universe exists.

Stephen Ingram defends a robustly realistic metaethical theory, based on the concept of normative arbitrariness, of which he provides the first in-depth analysis. He argues that, in order to capture the normative non-arbitrariness of moral choice, we must commit to the existence of robustly stance-independent, categorical, irreducibly normative, non-natural moral facts. Specifically, he identifies five ways in which a metaethical theory might fail to capture the non-arbitrariness of moral choice. The first involves claims about the bruteness of moral attitudes or (...) facts. The second involves claims about the privileging of some attitudes over others. The third involves the claim that some metaethical theories leave a normative deficit. The fourth involves a claim about our ownership over moral reality. And the fifth involves the claim that certain metaethical theories introduce a destabilising contingency into the moral domain. Ingram argues that robust realism is the theory that is best placed to avoid all five of these arbitrariness charges. He then goes on to show that, by exploring the nature of interpersonal moral dialogue, robust realists can defend epistemological and meta-semantic theories that are friendly to their view. Specifically, he defends a dualistic form of moral intuitionism on which some moral beliefs are justified on the basis of a priori intuitions, whilst others are justified on the basis of a posteriori moral experiences, and provides a theory of 'moral mental files' to explain how moral terms and concepts are able to refer to robust moral facts. (shrink)

In conversations with Schlick and Waismann from June and December 1930, Wittgenstein began to turn his attention to the topic of games. This topic also centrally concerned Schlick. In his earliest philosophical output, Schlick had relied on the results of evolutionary biology in setting out an account of the emergence of the human species’ ability to play [Spiel] as a prerequisite for the genesis of scientific knowledge. Throughout his subsequent works one finds fragmentary appeals to this early view, e.g. in (...) his oft misunderstood claim that play constitutes the meaning of life. Wittgenstein’s turn to the topic of games in 1930 not only happened while Professor Schlick was in the room, but was also coupled with an explicit response to Schlick’s 1930 book Fragen der Ethik. Schlick here employs the example of chess to distinguish between rules and their application – a distinction which underlies his whole attempt to naturalise ethics as a descriptive psycho-sociological discipline. This paper investigates the relation between Wittgenstein’s and Schlick’s accounts of games in light of Wittgenstein’s criticisms of Schlick’s ethics. Wittgenstein’s objections can be answered by taking Schlick’s theory of play into consideration. (shrink)

In this paper, I show how realist moral naturalists can provide an intra-theoretic explanation of the epistemic possibility of wholesale moral error. This is a requirement on metaethical theories that has been recently defended by Akhlaghi (2021). After clarifying Akhlaghi’s argument and responding to Evers’s (2021) recent rebuttal, I argue that even under the assumption that moral facts are grounded in an appropriate subset of natural facts (N-facts), there is still a non-zero probability of wholesale moral error. This is demonstrated (...) by considering three types of epistemically possible scenarios: specifically, it could either be that N-facts do not actually exist, or that N-facts exist in a way that entails wholesale moral error, or that N-facts exist in a non-error theoretic way, but their existence is temporally restricted. (shrink)

This volume features new essays on the application and role of naturalism in philosophical inquiry. It serves as an important update on current controversies about naturalism.

A non‐normative, response‐dependent view about morality can avoid metaphysical extravagance and explain why the extension of some non‐normative concepts can non‐accidentally match the extension of moral concepts. These features make it a plausible reductive account of moral properties. However, some philosophers believe that a response‐dependent account of morality must contain an irreducibly normative component. I argue that it is impossible to defend such a position while retaining the response‐dependent nature of morality in the ordinary sense. However, I believe that philosophers' (...) motivation for engaging in such a philosophical project should be taken seriously. The underlying concern is that the plausibility of a response‐dependent view makes people's strong commitment to irreducible normativity a puzzle that requires an explanation. I explain why people systematically fail to give up this commitment without claiming that they rationally cannot give it up, which means a non‐normative response‐dependent view is immune from such a challenge. (shrink)

Thomas Pölzler’s book offers the first detailed study that focuses explicitly on the promise of science-based arguments for and against moral realism (of both the natural and non-natural kind). His two central claims are that sound arguments bearing on the realism/anti-realism debate are possible, and, yet, that four central attempts to derive metaethical conclusions from science-based arguments uniformly fail. The book then provides several recommendations for future science-based contributions to the realism/anti-realism debate to do better. The book is a valuable (...) and thought-provoking contribution to experimental metaethics and, in particular, to debates surrounding experimental studies of folk-moral realism, where it provides an insightful and handy guide to the field. In what follows, I briefly lay out the book’s main arguments, focusing on Pölzler’s assessment of existing science-based arguments, along with some critical remarks, before providing a broader evaluation. (shrink)

Sam Harris (2010) argues that, given our neurology, we can experience well-being, and that seeking to maximize this state lets us distinguish the good from the bad. He takes our ability to compare degrees of well-being as his starting point, but I think that the analysis can be pushed further, since there is a (non-religious) reason why well-being is desirable, namely the finite life of an individual organism. It is because death is a constant possibility that things can be assessed (...) as “for” or “against” one (Champagne 2011a; Smith 2000). Such an account lets us objectively adjudicate moral questions, as Harris desires. However, by anchoring itself in the mortal body as a whole and not just the brain, such an account dampens the claim that neuroscience would have all the answers. Moreover, it pivots on an affirmation of one’s life that can seem mysterious by regular scientific standards. This chapter thus explains why the trade-off is worthwhile. (shrink)

Enis Doko bu kitapta 1) ahlakın doğasından hareketle nesnel ahlaki olguların varlığına (ahlaki gerçekçilik), 2) ahlaki gerçekçilikten hareketle ahlaki olguların doğal olgular olamayacağına, 3) doğal olmayan ahlaki olguların varlığından hareketle de Tanrı'nın varlığına ulaşmaya çalışıyor. Göreceğimiz gibi bu üç adımın her biriyle ilgili ciddi sorunlar var.

In this article we intend to characterize the issue of the so-called naturalistic fallacy and to evaluate how John Searle approaches it. To do this, we will briefly approach the arguments of David Hume and G. E. Moore and then analyze how Searle's objections to the alleged fallacy relate to such approaches and if have been successful.

Farbod Akhlaghi (2021) argues that noncognitivists and naturalists cannot explain the epistemic possibility of wholesale moral error. This would show that noncognitivism and naturalism are false. I argue that noncognitivists and naturalists have no trouble explaining the epistemic possibility of wholesale moral error and that the requirement to explain this possibility is plausible only on one particular conception of epistemic possibility.

Farbod Akhlaghi (2021) argues that noncognitivists and naturalists cannot explain the epistemic possibility of wholesale moral error. This would show that noncognitivism and naturalism are false. I argue that noncognitivists and naturalists have no trouble explaining the epistemic possibility of wholesale moral error and that the requirement to explain this possibility is plausible only on one particular conception of epistemic possibility.

Michael Huemer argues that cross-cultural convergence toward liberal moral values is evidence of objective moral progress, and by extension, evidence for moral realism. Nathan Cofnas claims to debunk Huemer’s argument by contending that convergence toward liberal moral values can be better explained by ‘two related non-truth-tracking processes’: self-interest and its long-term tendency to result in social conditions conducive to greater empathy. This article argues that although Cofnas successfully debunks Huemer’s convergence argument for one influential form of moral realism – Robust (...) Moral Realism, which holds that moral facts are non-natural, stance-independent normative facts – Cofnas’s debunking argument broadly supports a second type of moral realism: Enlightened Self-Interest Realism, the view that moral facts are reducible to stance-dependent requirements of instrumental (‘means-end’) rationality. Finally, this article argues that insofar as different Enlightened Self-Interest Realist theories make specific predictions about the intra- and inter-personal mechanisms behind moral convergence toward liberalism, empirical observations of cross-cultural convergence can provide independent support for Enlightened Self-Interest Realism. I conclude that this is an important mark in favor of Enlightened Self-Interest Realism over Robust Moral Realism. (shrink)

This chapter examines the influence of the empirical sciences (e.g., physics, biology, psychology) in contemporary analytic philosophy, with focus on philosophical theories that are guided by findings from the empirical sciences. Scientific approaches to philosophy follow a tradition of philosophical naturalism associated with Quine, which strives to ally philosophical methods and theories more closely with the empirical sciences and away from a priori theorizing and conceptual analysis.

In his book On What Matters, Derek Parfit defends a version of moral non-naturalism, a view according to which there are objective normative truths, some of which are moral truths, and we have a reliable way of discovering them. These moral truths do not exist, however, as parts of the natural universe nor in Plato’s heaven. While explaining in what way these truths exist and how we discover them, Parfit makes analogies between morality on the one hand, and mathematics and (...) logic on the other. Moral truths “exist” in a way that numbers exist, and we discover these truths in a similar way as we discover truths about numbers. By the end of the second volume, Parfit also responds to a powerful objection against his view, an objection based on the phenomenon of moral disagreement. If people widely and deeply disagree about what is the moral truth, it is doubtful whether we have a reliable way of discovering it. In his reply, he claims that in ideal conditions for thinking about moral questions, we would all have sufficiently similar moral beliefs. However, we often find ourselves in less-than-ideal conditions due to various factors that distort our ability to agree. Therefore, differences in moral opinion can be expected. In this paper, I draw a connection between these parts of Parfit’s theory and comment on them. Firstly, I argue that Parfit’s analogy with mathematics and logic and his answer to the disagreement objection are in tension because there are important epistemic differences between morality and these fields. If one would try to account for the differences, one would have to sacrifice some measure of similarity between morality and them. Secondly, I comment on Parfit’s reply to the disagreement objection itself. I believe that, although his description of ideal conditions has some potential for reaching moral agreement, it may be difficult to tell if ideal conditions prevail. This obscurity spells further trouble for Parfit’s overall theory. (shrink)

In this work I defend moral realism, the thesis that there are objective moral truths, by defending “epistemic realism.” Epistemic realism is the thesis that epistemic judgments, e.g., judgments that some belief is epistemically reasonable, or justified, or known or should be held, are sometimes true and made true by stance-independent epistemic facts and properties. -/- One might think that epistemic realism needs no defense because it is obviously true and nearly universally accepted. But there are influential arguments against moral (...) realism, which is analogous to epistemic realism: moral realists think that moral judgments, e.g., that something is morally good, or ought to be done, are sometimes true because there are stance-independent moral facts and properties. Moral irrealists deny this for a variety of semantic, metaphysical, psychological and epistemological reasons. They argue that moral judgments are neither true nor false since they are non-cognitive expressions of emotion or commands, or are never true since they fail to refer, or that their truth is “relative.” -/- Drawing on the moral irrealisms of Ayer, Stevenson, Hare, Mackie, Harman, and more recent thinkers, I construct parallel arguments for epistemic irrealisms. On these views, epistemic judgments are also merely expressive, a kind of command, always false, or relativistic in truth conditions: even “epistemic platitudes” like “justified beliefs are better than unjustified beliefs” and “ideally, one’s beliefs ought to be consistent” are understood not as epistemic propositions that might be believed (much less believed truly), or as attempts to accurately represent epistemic facts, or as attributions of epistemic properties. -/- The implications of these claims are highly at odds with common epistemological assumptions, even those that moral irrealists tend to accept. I argue that these implications are rationally unacceptable and that, therefore, the premises that support them should be rejected. Since these premises are those given in defense of moral irrealisms, I thereby defend both moral and epistemic realism. Thus, I argue that “oughts,” “shoulds” and other evaluative judgments are equally legitimate in both ethics and epistemology. (shrink)

The use of evolutionary game theory to explain the evolution of human norms and the behavior of humans who act according to those norms is widespread. Both the aims and motivation for its use are clearly articulated by Harms and Skyrms (2008) in the following passage: "A good theory of evolution of norms might start by explaining the evolution of altruism in Prisoner’s Dilemma, of Stag Hunting, and of the equal split in the symmetric bargaining game. These are not well-explained (...) by classical game theory based on rational choice. From a technical point of view, they present different theoretical challenges. In the bargaining game, there are an infinite number of equilibria with no principled (rational choice) way to select the cooperative one. In Stag Hunt there are only two, but the non-cooperative one is selected by risk-dominance. In Prisoner’s Dilemma the state of mutual cooperation is not a Nash equilibrium at all, and cooperation flies in the face of the rational-choice principle that one does not choose less rather than more. In contrast to rational choice theory, the most common tool of evolutionary game theory is the replicator dynamics, in which the propagation rate of each strategy is determined by its current payoffs. These dynamics have a rationale in both biological and cultural evolutionary modeling, and sometimes tell us things that rational choice theory does not." We agree with the first sentence in this quotation: a good theory about the behavior under norms ought to explain altruism in the Prisoner’s Dilemma (PD), playing Stag in Stag Hunt (SH), and offering equal splits in the symmetric Nash bargaining game (NB). We also agree with Harms and Skyrms about the difference in technical challenges each of these games poses. Finding a single mechanism, even one as broadly understood as evolution, that could solve these challenges en masse is no doubt a tall order. Nonetheless, in this paper, we present a single, simple, modification to SH, NB, and a general n-player PD that does just that: we introduce deontological autonomy into the models. (shrink)

Aristotelian theory, as found in Michael Thompson and Philippa Foot, claims that to be good is to be good as a member of that kind. Moreover, Foot argues in effect that goodness admits of only the kind-based sort, obtaining solely in virtue of something’s satisfying kind-based standards. However, I contend that something can satisfy kind-relative standards but nonetheless be bad—I propose a hypothetical Ebola-like microbe that meets its kind-standards of being destructive for its own sake, but it would plausibly be (...) bad for doing so. In defending my counterexample, I respond to the Aristotelian contention that evaluations should only be made from “within” the standpoint of a particular lifeform conception, rather than an “external” one from which that kind itself can be judged to be bad. (shrink)

This paper focuses on a recently articulated, emergentist conception of ethical naturalism and its commitment to causal efficacy, or the idea that moral properties have causal powers, along with its supporting commitment to moral causation. After I reconstruct the theory, I explain how it offers some interesting theoretical benefits to moral realists in virtue of its commitment to causal efficacy. Then, after locating some examples of moral causation in support of this commitment, I present and respond to five objections to (...) such causation, which all threaten to undermine this support. Lastly, I consider a very serious problem that the theory faces in virtue of positing emergent moral properties as responsible for moral causation – namely, the problem of downward moral causation. I describe this problem in detail and argue that, as it stands, it does not spell doom for the theory. (shrink)

Evolutionary debunking arguments, whether defended by Street (2006), Joyce (2006), or others against moral realism, or by Plantinga (1993, 2011) and others against atheism, seek to determine the implications of the still-dominant worldview of naturalism. Examining them is thus a critical component of any defense of a theistic philosophy of nature. Recently, several authors have explored the connection between evolutionary debunking arguments against moral realism (hence: EDAs) and Plantinga’s evolutionary argument against naturalistic atheism (hence: EAAN). Typically, responses in this vein (...) have been critical of EDAs, arguing that they are in some way self-undermining. Different critics have argued that, in the course of defending the EAAN, the theist loses her best response to the probabilistic argument from evil for atheism. Here, I provide the first systematic comparison of all three arguments—EDAs, the EAAN, and the problem of evil—and suggest that the first charge succeeds while the second fails. (shrink)

Does theism make a difference to whether there are moral facts? In this paper I suggest that, despite how much uptake this question gets in philosophical literature, it is not well formed. “Theism” leaves too indeterminate what God is like for us to discern what difference God’s existence would make to moral facts. Arguments like the explanans-driven argument for theistic moral realism and the explanationist argument for naturalist moral realism both require extra substantive assumptions about God in order to be (...) valid and compelling. Specifically, the arguments must take a stand on whether God is personal or a-personal, and how this affects God’s relation to the natural world. (shrink)

Diese Einleitung liefert eine Skizze der Genese des Bandes, eine Einführung in die im Sammelband diskutierten Themenkomplexe und Fragestellungen sowie Zusammenfassungen aller in ihm enthaltenen Beiträge.

David Lewis rejected consequentialism in ethics. However, two aspects of his meta-ethical views make it a challenge to see how consequentialism could be resisted. Lewis endorses a maximising conception of rationality, where to be rational is to maximise value of a certain sort; he appears to think it is possible to be both rational and moral; and yet he rejects conceptions of moral action as acting to maximise moral value. The second tension in Lewis's views arises from his meta-ethics. Lewis's (...) naturalisation of morality is in terms of a naturalised account of value, including moral value. Insofar as he offers a motivational story for moral judgements, it is one that goes via a motivational connection to value. Yet his anti-consequentialism seems to commit him to rejecting a story of moral action entirely in terms of pursuit of moral value. In both cases there are things to be said about how to weave these strands of Lewis's thought together. After setting out these two apparent tensions in Lewis's thought about ethics, the paper discusses what a Lewisian could best say about these puzzles. Lewisians do have a number of plausible options for dealing with the first challenge. While there are things a Lewisian could attempt to extend Lewis's moral naturalism in a way that could deal with the second challenge, it is harder to see how to do this in a satisfying way. Attention then turns to what Lewis said in his letters on these topics: on that basis, perhaps Lewis was close to being an agent-relative consequentialist after all. (shrink)

Este artigo visa compreender o estado da arte do naturalismo contemporâneo a partir da discussão com posições não naturalistas, em especial as de Moore e Rawls. Parte-se da análise do argumento central destas abordagens no contexto formal da metaética contemporânea, buscando aferir a validade da falácia naturalista no contexto atual, bem como de seus limites na aplicação contra o naturalismo moral. Apresenta-se a discussão entre o naturalismo e o não-naturalismo moral como, respectivamente, estandartes das perspectivas descritivas e prescritivas da moralidade. (...) O objetivo com esta comparação é apresentar algumas posições em metaética a fim de melhor entender a situação contemporânea do debate moral no que tange à naturalização da ética, contrastando teorias da ação e do valor quanto ao tema da motivação e da normatividade morais. (shrink)

What is the significance of empirical moral psychology for metaethics? In this article we take up Michael Ruse’s evolutionary debunking argument against moral realism and reassess it in the context of the empirical state of the art. Ruse’s argument depends on the phenomenological presumption that people generally experience morality as objective. We demonstrate how recent experimental findings challenge this widely-shared armchair presumption and conclude that Ruse’s argument fails. We situate this finding in the recent debate about Carnapian explication and argue (...) that it illustrates the necessary role that empirical moral psychology plays in explication preparation. Moral psychology sets boundaries for reasonable desiderata in metaethics and, therefore, it is necessary for metaethics. (shrink)

Přirozený zákon je jednou z nejvýznamnějších idejí, která stojí v základech evropského filosofického, etického a právního myšlení. Předložený článek podává stručnou expozici vývoje ideje přirozeného zákona ve filosofickém myšlení s důrazem na jeho klíčové momenty a vyjádření nosných tezí, které předurčily rozumění tomuto pojmu v následujících obdobích. Jeho cílem není detailní probádání některé z jednotlivých etap či některého z autorů, ale naopak podat souhrnný a přehledný obraz vývoje této ideje. Východiskem je zde stručné načrtnutí hlavních zdrojů ideje přirozeného zákona v (...) antice, počínaje předsokratiky, následně u Platóna a Aristotela a představením hlavních rysů stoické koncepce. Další část je věnovaná scholastickému uchopení problematiky přirozeného zákona u T. Akvinského a Suaréze. Následuje přiblížení novověkých úvah u Grotia, Pufendorfa a Hobbese. Tito teoretici jsou následně kontrastováni s průřezovým přehledem myšlení positivně právního u Benthama, Austina a jejich pokračovatelů, neboť i vývoj positivistického myšlení výrazně přispěl k zformování moderní teorie přirozeného zákona, které stojí explicitně v opozici k němu. Text uzavírá přiblížení stavu přirozenoprávní diskuse u nejvýznamnějších autorů 20. století. (shrink)

There has lately been substantial interest in scrutinizing our evaluative attitudes in light of our evolutionary history. However, these discussions have been hampered by an insufficiently expansive vantage. Our history did not begin ex nihilo a few million years ago with the appearance of hominins, or apes, or primates—those are very recent chapters of a much larger story that spans billions of years. This paper situates the mechanisms underlying normative thought within this broader context. I argue that this historical perspective (...) creates difficulties for metaethical nonnaturalists. The expanded scope enables the story to be anchored in negative claims about value, making room for novel epistemological and metaphysical challenges that are more threatening than extant evolutionary debunking arguments. (shrink)

This essay serves as a general introduction to metaethics, highlighting the ideas that drive us toward or away from the various theories.

Foundations of Moral Philosophy: Readings in Metaethics is a comprehensive collection of fifty-six contemporary readings and historical sources on major issues in metaethics. It focuses on the meaning of moral terms, the nature of moral psychology, whether we can know moral truths (if there are any), and the role of moral reasons. The book features unparalleled representation of women philosophers, with one-third of the contemporary articles authored or coauthored by women. Wherever appropriate, the articles have been carefully edited to ensure (...) that they will be exceptionally clear and understandable to undergraduate students. The volume is enhanced by a general introduction, introductions and study questions for each selection, and a detailed glossary. (shrink)

Figure majeure de la philosophie morale, Derek Parfit (1942-2017) reste encore peuconnu en France. Cette introduction vise à montrer l'ampleur des thématiques abordées de Parfit en les rattachant au projet d'une éthique rationnelle, tandis que le numéro dansson ensemble, sans prétendre être exhaustif, propose des présentations et discussions de différents éléments clefs de sa philosophie.

Bart Streumer believes that the following principle is true of all normative judgements: When two people make conflicting normative judgements, at most one of them is correct. Streumer argues that noncognitivists are unable to explain why is true, or our acceptance of it. I argue that his arguments are inconclusive. I also argue that our acceptance of is limited in the case of instrumental and epistemic normative judgements, and that the extent to which we do accept for such judgements can (...) be explained by an assumption of shared standards of correctness. Finally, I argue that reductivists can appeal to the same ideas to defend their view that instrumental and epistemic normative judgements describe non-normative relations. (shrink)

Moral philosophy continues to be enriched by an ongoing empirical turn,mainly through contributions from neuroscience, biology, and psychology. Thusfar, cultural anthropology has largely been missing. A recent and rapidly growing‘ethical turn’ within cultural anthropologynow explicitly and systematically studiesmorality. This research report aims to introduce to an audience in moral philosophyseveral notable works within the ethical turn. It does so by critically discussing theethical turn’s contributions to four topics: the definition of morality, the nature ofmoral change and progress, the truth of (...) moral relativism, and attempts to debunkmorality. The ethical turn uncovers a richer picture of moral phenomena on theintersubjective level, one akin to a virtue theoretic focus on moral character, withstriking similarities of moral phenomena across cultures. Perennial debates are notsettled but the ethical turn strengthens moral philosophy’s empirical turn and itrewards serious attention from philosophers. (shrink)

Reply to Krister Bykvist and Jonas Olson's review of Choosing Normative Concepts (OUP, 2017) in Utilitas.

Evidence from biology and psychology suggests that our moral views depend on our evolutionary history. For example, if we humans would have evolved to live like hive bees, we would probably think very differently about moral questions such as whether we have a duty to care for our children. The findings from biology and psychology threaten to ‘debunk’ the justification of judgements about objective moral truths. Objective moral truths are always the same and they do not vary with our contingent (...) evolutionary history, whereas our moral judgements do. It has been argued that we, therefore, cannot tell right from wrong. In my thesis, I investigate the epistemology behind the evolutionary debunking of morality. Evolutionary explanations of morality, I argue, do not imply that our moral judgements are false. This leaves the possibility that evolution undercuts our (alleged) evidence for our moral judgements. Our evolutionarily influenced moral judgements might turn out to be unreliable guides to the moral truth, just like sight is a lousy guide to the external world in bad lighting conditions. However, I show that as long as we have reason to initially trust our moral beliefs, evolution does not provide us with reason to give up our moral beliefs. If evolution undercuts our moral beliefs, evolutionary considerations must show that true moral judgements do not qualify as knowledge because moral judgements are not cognitive achievements but comparable to lucky guesses. The thesis thus answers how empirical investigations of morality might have justificatory implications and the findings are relevant for deciding whether new factual information can alter how we think about right and wrong. (shrink)