According to Agrippa's trilemma, an attempt to justify something leads to either infinite regress, circularity, or dogmatism. This essay examines whether and to what extent the trilemma applies to ethics. There are various responses to the trilemma, such as foundationalism, coherentism, contextualism, infinitism, and German idealism. Examining those responses, the essay shows that the trilemma applies at least to rational justification of contentful moral beliefs. This means that rationalist ethics based on any contentful moral belief are rationally unjustifiable.

The main aim of this thesis is to defend moral realism. In chapter 1, I argue that moral realism is best understood as the view that moral sentences have truth-value, there are moral properties that make some moral sentences true, and moral properties are not reducible to non- moral properties. Realism is contrasted with non-cognitivism, error-theory and reductionism, which, in brief, deny, and, respectively. In the introductory chapter, it is also argued that there are some prima facie reasons to assume (...) that non-cognitivism and error-theory are erroneous. In chapters 2 and 3, I suggest that the two main forms of reductionism, analytic and synthetic reductionism, are mistaken. In chapter 4, I argue that the considerations in the previous chapters in relation to non-cognitivism, error-theory and reductionism provide support to moral realism. It is also suggested that these considerations make it plausible to hypothesise that moral properties depend on non- moral properties in a way I refer to as ‘the realist formula’. The realist formula confirms moral realism since it implies that moral properties are not reducible to non- moral properties. In chapters 5, 6 and 7, I argue that moral realism, much owing to the realist formula, is able to explain significant meta-ethical issues regarding moral disagreement, moral reason and moral motivation. Among other things, externalism concerning moral motivation is defended. The explanatory value of moral realism in relation to these meta-ethical issues is taken to suggest that this view is preferable to non-cognitivism, error-theory and reductionism. Some of the meta-ethical issues discussed in these chapters, particularly moral disagreement and motivation, have been thought to provide support to non-cognitivism and error-theory. I maintain that since realism, unlike reductionism, is able to counter these arguments, it justifies us in upholding the view that moral sentences have truth-value and the view that there are moral properties. In chapter 8, various objections against realism with regard to the dependence of moral properties on non- moral properties are responded to. In chapter 9, I consider an influential argument to the effect that moral properties are not involved in causal explanations. I maintain that this argument fails and that it therefore is reasonable to assume that moral properties are natural properties. However, the discussions in chapters 8 and 9 also suggest that moral realism might face problems that cannot be thoroughly discussed in this thesis. (shrink)

Are there good arguments from Is to Ought? Toomas Karmo has claimed that there are trivially valid arguments from Is to Ought, but no sound ones. I call into question some key elements of Karmo’s argument for the “logical autonomy of ethics”, and show that attempts to use it as part of an overall case for moral skepticism would be self-defeating.

Moral progress is often modeled as an increase in moral knowledge and understanding, with achievements in moral reasoning seen as key drivers of progressive moral change. Contemporary discussion recognizes two (rival) accounts: knowledge-based and understanding-based theories of moral progress, with the latter recently contended as superior (Severini 2021 ). In this article, we challenge the alleged superiority of understanding-based accounts by conducting a comparative analysis of the theoretical advantages and disadvantages of both approaches. We assess them based on their potential (...) to meet the following criteria: (i) moral progress must be possible despite evolutionary and epistemic constraints on moral reasoning; (ii) it should be epistemically achievable to ordinary moral agents; and (iii) it should be explainable via doxastic change. Our analysis suggests that both accounts are roughly equally plausible, but knowledge-based accounts are slightly less demanding and more effective at explaining doxastic change. Therefore, contrary to the prevailing view, we find knowledge-based accounts of moral progress more promising. (shrink)

In this paper, I critically analyze the notion that self-interest distorts moral belief-formation. This belief is widely shared among modern moral epistemologists, and in this paper, I seek to undermine this near consensus. I then offer a principle which can help us to sort cases in which self-interest distorts moral belief from cases in which it does not. As it turns out, we cannot determine whether such distortion has occurred from the armchair; rather, we must inquire into mechanisms of social (...) power and advantage before declaring that some moral position is distorted by self-interest. (shrink)

How is moral knowledge possible? This paper defends the anti-Humean thesis that we can acquire moral knowledge by deduction from wholly non-moral premises. According to Hume’s Law, as it has become known, we cannot deduce an ‘ought’ from an ‘is’, since it is “altogether inconceivable how this new relation can be a deduction from others, which are entirely different from it” (Hume, 1739, 3.1.1). This paper explores the prospects for a deductive theory of moral knowledge that rejects Hume’s Law.

The paper explores the interplay among moral progress, evolution and moral realism. Although it is nearly uncontroversial to note that morality makes progress of one sort or another, it is far from uncontroversial to define what constitutes moral progress. In a minimal sense, moral progress occurs when a subsequent state of affairs is better than a preceding one. Moral realists conceive “it is better than” as something like “it more adequately reflects moral facts”; therefore, on a realist view, moral progress (...) can be associated with accumulations of moral knowledge. From an evolutionary perspective, on the contrary, since there cannot be something like moral knowledge, one might conclude there cannot even be such a thing as moral progress. More precisely, evolutionism urges us to ask whether we can acknowledge the existence of moral progress without being committed to moral realism. A promising strategy, I will argue, is to develop an account of moral progress based on moral understanding rather than moral knowledge. On this view, moral progress follows increases in moral understanding rather than accumulations of moral knowledge. Whether an understanding-based account of moral progress is feasible and what its implications for the notion itself of moral progress are, will be discussed. (shrink)

The current discourse on moral epistemology (ME), has hardly paid any attention to the question concerning the demarcation of the domain of ME within epistemology. Neither is the subject matter of ME considered unique, nor is the methodology adopted in its investigations considered distinct. We attempt to show in this paper that this omission does not restrict itself to a mere taxonomical oversight but rather leads to certain deeper conceptual concerns. We argue that a casual and porous understanding of the (...) subject matter of ME is the result of conflating moral beliefs and justification with non-moral beliefs and justification. If ME doesn't merit a clear demarcation within epistemology, then the very legitimacy of ME is brought under a cloud, thereby threatening the distinction between ethics and epistemology. We believe G. E Moore foresaw this predicament and our interpretation of his work could offer a possible solution. (shrink)

This paper explores how hinge epistemology might fruitfully be applied not only to the problem of radical skepticism, but also to certain domain specific skepticisms, and in particular, moral skepticism. The paper explains the idea of a domain specific skepticism, and how domain specific skepticisms contrast with radical skepticism. I argue that a domain specific skeptical problem can be resolved in just the same way as radical skepticism, if there are hinge commitments within that domain. I then suggest that there (...) are hinge commitments in the moral domain, and use this to address a moral skeptical problem due to our apparent inability to know moral nihilism to be false. (shrink)

In earlier work, I argued that observed changes in moral values over human history are best explained as cognitive progress: societies tend over the long term to move closer to the objective moral truth. It is also true that, in recent decades, liberal democracies have moved strongly in the direction of greater government regulation and wealth redistribution. Does this mean that extensive regulation and redistribution are objectively good? I argue that the answer is no; these recent trends are importantly different (...) from earlier examples of moral progress in ways that enable them to be satisfyingly explained without adverting to objective moral correctness. (shrink)

Contrastivism about knowledge is the view that one does not just know some proposition. It is more adequate to say that one knows something rather than something else: I know that I am looking at a tree rather than a bush but I do not know that I am looking at a tree rather than a cleverly done tree imitation. Knowledge is a three-place relation between a subject, a proposition and a contrast set of propositions. There are several advantages of (...) a contrastivist view but also certain problems with it. (shrink)

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)

In a series of recent papers, Walter Sinnott-Armstrong has used findings in social psychology to put pressure on the claim that our moral beliefs can be non-inferentially justified. More specifically, he has suggested that insofar as our moral intuitions are subject to what psychologists call framing effects, this poses a real problem for moral intuitionism. In this paper, we are going to try to add more fuel to the empirical fire that Sinnott-Armstrong has placed under the feet of the intuitionist. (...) Along the way, we first provide an overview of what Sinnott-Armstrong calls the Master Argument against intuitionism. Then we examine some of the literature on framing effects—especially as it pertains to moral philosophy. Finally, we present the results of a new study which create yet another hurdle intuitionists must clear if they want to motivate their view. It appears that in addition to being influenced by framing effects, our moral intuitions are also influenced by an actor–observer bias as well—a bias whereby we hold other people to different moral standards than we would hold ourselves even if we were in the same situation. If we’re right, the burden is on the moral intuitionist to explain why we should have faith in our moral intuitions despite the gathering evidence concerning their seeming unreliability. And by our lights, this is something that simply cannot be done from the armchair. (shrink)

What is the point of developing an epistemology for a topic—for example, morality? When is it appropriate to develop the epistemology of a topic? For many topics—for example, the topic of socks—we see no need to develop a special epistemology. Under what conditions, then, does a topic deserve its own epistemology? I seek to answer these questions in this article. I provide a criterion for deciding when we are warranted in developing an epistemological theory for a topic. I briefly apply (...) this criterion to moral epistemology and argue that some approaches to moral epistemology should be abandoned. I also argue that we can develop an epistemology for a topic without committing ourselves to a specific substantive theory of justification, such as reliabilism or coherentism, if we work within a suitably neutral framework. (shrink)

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

The subject of this paper is probably the most influential version of moral realism, known as “moral realism naturalism”. After I propose what seems to be the most appropriate formulation of moral realism, I discuss whether it is possible to show that moral properties and natural properties can be identified a posteriori. In the second part I try to show that moral realists naturalists cannot refute wellknown Mackie’s “argument from querness”. In the end I discuss whether moral realists naturalists can (...) ascribe the explanatory power to moral properties. (shrink)

Sinnott-Armstrong has attacked the epistemology of moral intuitionism on the grounds that it is not justified to have some moral beliefs without needing them to be inferred from other beliefs. He believes that our moral judgments are inferentially justified because the “framing effects” which are mostly discussed in the empirical psychology cast doubt on any non-inferential justification. In this paper, I argue that Sinnott-Armstrong’s argument is question begging against intuitionists and his description of epistemological intuitionism is a diluted version that (...) most of intuitionists do not believe, therefore he is not attacking the epistemological intuitionism in its strongest form. I then propose my alternative modest account of epistemological intuitionism. I also reconsider the concept of “non-inferentiality”, as one of the key elements of intuitionist epistemology, and propose a modest account of non-inferentiality. (shrink)

Predmet ovog rada je vjerojatno najutjecajnija verzija moralnog realizma, poznata kao “moralni realizam naturalizam”. Nakon što predložim formulaciju za koju smatram da najpotpunije opisuje poziciju moralnog realizma, raspravljam o tome je li moguće provesti aposteriornu identifikaciju moralnih i prirodnih svojstava. U drugom dijelu nastojim pokazati da moralni realisti naturalisti ne uspijevaju izbjeći poznatom Mackievu “argumentu iz čudnosti” . Na kraju raspravljam o tome mogu li realisti naturalisti moralnim svojstvima pripisati eksplanatornu moć.The subject of this paper is probably the most influential (...) version ofmoral realism, known as “moral realism naturalism”. After I propose what seems to be the most appropriate formulation of moral realism, I discuss whether it is possible to show that moral properties and natural properties can be identified a posteriori. In the second part I try to show that moral realists naturalists cannot refute wellknownMackie’s “argument from querness” . In the end I discuss whether moral realists naturalists can ascribe the explanatory power to moral properties. (shrink)

Sidgwick argued that utilitarianism and egoism were in conflict, that neither theory was better justified than the other, and concluded that there was a and all that remained to him was. The dualism argument introduced by Sidgwick is an extremely powerful sceptical argument that no theory of ethics is rationally required: it cannot be shown that a moral sceptic or an egoist ought to accept the moral theory, otherwise she is unreasonable. I explain two ways in which the significance of (...) the dualism argument has been underestimated. First, I suggest that a hybrid theory such as utilitarianism with an egoist bias is not a solution to the dualism. Second, I argue that the dualism argument is not restricted to a conflict between hedonic egoism and utilitarianism, but applies to any attempt to show that a theory of ethics is rationally required. (shrink)

Em The Sources of Normativity, Korsgaard defende que o projeto moral de Hume deve ser interpretado como naturalista e normativo. Nossa reconstrução desta interpretação propõe que Korsgaard atribui a Hume um argumento análogo ao “argumento do regresso”, que teria como consequência a tese de que, na meta-ética Humeana, a natureza humana possui valor incondicional e é a fonte de normatividade prática. Se isto estiver correto, Hume deveria ser interpretado como um naturalista redutivista sobre valor moral, reduzindo enunciados valorativos a descritivos. (...) Apresentaremos razões para resistir a esta interpretação, negando que tal “argumento do regresso” se aplique a Hume e defendendo que a sua meta-ética cumpre um papel explicativo, mas não justificatório, de nossas práticas morais. (shrink)

This paper presents a puzzle about moral responsibility. The problem is based upon the indeterminacy of relevant reference classes as applied to action. After discussing and rejecting a very tempting response I propose moral contextualism instead, that is, the idea that the truth value of judgments of the form S is morally responsible for x depends on and varies with the context of the attributor who makes that judgment. Even if this reply should not do all the expected work it (...) is a first step. (shrink)