The falsity of moral claims is commonly deduced from two tenets: that they presuppose the existence of objective values and that these values don’t exist. Hence, the error theory concludes, moral claims are false. In this article, I put pressure on the image of human morality that is presupposed in moving from the non-existence of objective values to the falsity of moral claims. I argue that, while, understood in a certain way, the two premises of the error theory are correct, (...) this does not render moral discourse false, because moral objectivity is disanalogous to objectivity in empirical sciences and as such need not be characterized in terms of mind-independency. Using Dewey, I illuminate the possibility of accommodating the guiding intuitions of the error theory in a first-order account of morality. (shrink)

Proponents of the epistemic companions in guilt argument argue that we should reject the moral error theory because it entails that there are no epistemic reasons. In this paper, I investigate whether a plausible version of the moral error theory can be constructed that does not entail an error theory about epistemic reasons. I argue that there are no irreducibly normative second-personal reasons even if there are irreducibly normative reasons. And epistemic reasons are not second-personal reasons. In this case, a (...) plausible version of the moral error theory can be constructed that does not entail an error theory about epistemic reasons if facts and claims about morality entail facts and claims about irreducibly normative second-personal reasons. And, as I explain, there is a good case that facts and claims about morality do entail facts and claims about irreducibly normative second-personal reasons. (shrink)

Entre as modernas teorias em Metaética a Teoria do Erro de John Mackie é uma das mais influentes. Isso não é acidental. A teoria de Mackie é nova, é interessante e está apoiada em argumentos claros e desafiadores. A despeito de tudo isso, aqui uma crítica às principais teses de Mackie será apresentada. Em primeiro lugar se sustentará que se o seu principal argumento, o argumento do caráter estranho, é tomado como aceitável, o que se segue não é a falsidade (...) sistemática dos enunciados morais, como Mackie alega, mas algo diferente. Em segundo lugar, argumentar-se-á que o próprio argumento do caráter estranho não é aceitável. O resultado é uma rejeição dos pontos principais da teoria de Mackie. (shrink)

J. L. Mackie famously argued that a commitment to non-existent objective values permeates ordinary moral thought and discourse. According to a standard interpretation, Mackie construed this commitment as a universal and indeed essential feature of moral judgments. In this paper I argue that we should rather ascribe to Mackie a form of semantic pluralism, according to which not all moral judgments involve the commitment to objective values. This interpretation not only makes better sense of what Mackie actually says, but also (...) renders his error theory immune to a powerful objection. (shrink)

Debunking arguments aim at defeating the justification of a belief by revealing the belief to have a dubious genealogy. One prominent example of such a debunking argument is Richard Joyce’s evolutionary debunking explanation of morality. Joyce’s argument targets only our belief in moral facts, while our belief in prudential facts is exempt from his evolutionary critique. In this paper, I suggest that our belief in prudential facts falls victim to evolutionary debunking, too. Just as our moral sense can be explained (...) in evolutionary terms, so presumably can our tendency to judge our actions in prudential terms. And if the evolutionary explanation of our moral sense has an undermining effect, then so does the evolutionary explanation of our belief in prudential facts. This also undermines moral fictionalism, the view that we have prudential reasons to maintain moral discourse as a fiction. I consider and refute four possible objections to the suggested debunking of our belief in prudential normativity. (shrink)

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

Moral error theorists often claim to be strongly anti‑metaphysical in their moral scepticism and atheistic naturalists. This paper argues that pre‑ cisely this becomes a problem for them, when their metaethical and ontologi‑ cal commitments clash. I first outline how the known arguments against error theory face a problematic, yet rarely considered trade‑off : either they are very strong, then they are also very demanding in their assumptions or they are less demanding in their assumptions but rather weak in their (...) conclusions. In re‑ sponse to this challenge I then develop a new argument against error theory that exploits an overlooked inconsistency in the error theorists’ standard line of argumentation. I conclude that the implications of this inconsistency are less of a problem for fictionalist error theorists, but will render any eliminativism based on error theory circular. (shrink)

When it comes to the metaethical task of explaining and making sense of what it is that we are doing while doing ethics, the subject of moral objectivity occupies an important and special place within that task. Thus, it is often agreed that being able to explain and justify the objective features of common moral practice is one of if not the most important task for any metaethical theory to undertake. In this dissertation, I tackle the issue of ethical objectivity (...) on behalf of metaethical constructivism. To be more precise, my aim is to make plausible, strengthen, and defend the constructivist original contribution to contemporary metaethics by developing a novel constructivist account on the objectivity of ethics. While the account that I develop herein presents a novel and independent approach to the subject of moral objectivity on behalf of constructivism, it also places itself between the two other positions within the constructivist camp that openly strive to secure ethical objectivity – namely Kantianism on the one hand, and the more recently developed Humean objectivist view on the other. It is for the latter reason that I call my own view the hybrid view. (shrink)

In this introductory chapter, I not only present the essays that make up this volume but also I offer an extensive critical overview of moral skepticism with the hope that it will turn out to be useful particularly to the uninitiated reader. I first provide a taxonomy of varieties of moral skepticism, then discuss the main arguments advanced in their favor, and finally summarize the ten essays here collected, which deal with one or more of those skeptical stances and arguments.