Online research in philosophy

In this book, Folke Tersman explores what we can learn about the nature of moral thinking from moral disagreement. He explains how diversity of opinion on moral issues undermines the idea that moral convictions can be objectively valued. Arguments on moral thinking are often criticized for not being able to explain why there is a contrast between ethics and other areas in which there is disagreement, but where one does not give up the idea of an objective truth, as in the natural sciences. Tersman shows that the contrast has to do with facts about when, and on what basis, moral convictions can be correctly attributed to an agent or speaker.

It is nowadays taken for granted that the core radical sceptical arguments all pivot upon the principle that the epistemic operator in question is 'closed' under known entailments. Accordingly, the standard anti-sceptical project now involves either denying closure or retaining closure by amending how one understands other elements of the sceptical argument. However, there are epistemic principles available to the sceptic which are logically weaker than closure but achieve the same result. Accordingly the contemporary debate fails to engage with the sceptical problem in its strongest form.

It is nowadays taken for granted that the core radical sceptical arguments all pivot upon the principle that the epistemic operator in question is 'closed' under known entailments. Accordingly, the standard anti-sceptical project now involves either denying closure or retaining closure by amending how one understands other elements of the sceptical argument. However, there are epistemic principles available to the sceptic which are logically weaker than closure but achieve the same result. Accordingly the contemporary debate fails to engage with the sceptical problem in its strongest form.

The 'argument from queerness', made famous by J. L. Mackie, remains one of the most influential arguments in metaethics. However, many philosophers focus on just one or two of its strands, while others assume a particular but by no means universal reading of it. This essay attempts to disentangle and evaluate all strands of the argument. Surprisingly, when this is done, not much is left as a distinct argument from queerness. Much of the argument collapses into other types of argument, and what is left, though intuitively appealing, is not viable as philosophical argument.

I use the example of abortion to show that there are some unresolvable moral disagreements. I list four sources of unresolvable moral disagreement: 1) differences in the rankings of the basic evils of death, pain, disability, loss of freedom, and loss of pleasure, 2) differences in the interpretation of moral rules, 3) ideological differences in the view of human nature and human societies, and 4) differences concerning who is impartially protected by the moral rules. It is this last difference that is the source of unresolvable disagreement concerning the moral acceptability of abortion. I examine the views of Don Marquis and Mary Ann Warren who present opposing arguments concerning the moral acceptability of abortion. I show that their failure to take account of this last difference leads to flaws in their arguments that show that neither has been successful in showing that their position is the uniquely correct one.

Sceptical theists--e.g., William Alston and Michael Bergmann--have claimed that considerations concerning human cognitive limitations are alone sufficient to undermine evidential arguments from evil. We argue that, if the considerations deployed by sceptical theists are sufficient to undermine evidential arguments from evil, then those considerations are also sufficient to undermine inferences that play a crucial role in ordinary moral reasoning. If cogent, our argument suffices to discredit sceptical theist responses to evidential arguments from evil.

Eighteenth-century disputes in moral theory seem to offer an opportunity to scepticism about moral theory and about morality. Twentieth-century theorists have tried to forestall a sceptical argument from disagreement in moral theory to doubts about morality, by appeal to a division between first-order and second-order questions. This division, however, does not answer the sceptical argument. A better reply appears in Butler's treatment of disagreement through his strategies of consensus and comprehension. These strategies are illustrated by his discussion of utilitarianism and of the relation between conscience and self-love.

The phenomenon of persistent ethical disagreement is often cited in connection with the question of whether there is any ‘‘absolute’’ morality, or whether, instead, morality is in some sense merely ‘‘a matter of personal opinion’’. Citing disagreement, many people who hold strong views about controversial issues such as the permissibility of abortion, eating meat, or the death penalty deny that these views are anything more than ‘‘personal beliefs’’. But while there might be inconsistencies lurking in this position, it is not obviously at fault for according the facts about disagreement some epistemic weight. This paper addresses the question of whether and to what extent moral disagreement undermines moral knowledge. The most familiar arguments from disagreement in the literature purport to establish conclusions about the metaphysics of morality: that there are no moral facts, or that there are no moral properties, or that the moral facts are relative rather than absolute. Of course, the conclusions of some such metaphysical arguments might be perfectly consistent with the existence of considerable moral knowledge. For example, even if there is some successful argument from disagreement to the conclusion that moral facts are relative rather than absolute, this might very well be consistent with our having just as much moral knowledge as we..

1. What is moral realism? The paper rejects standard answers (Sayre-McCord, Railton) in terms of truth and meaning. These standard answers are partly motivated by the phenomenon of noncognitivism. Noncognitivism does indeed cause trouble for a straightforwardly metaphysical answer but still such an answer can be given.2. Why believe moral realism? It is prima facie plausible and its alternatives are not. Major worry: How can moral realism be fitted into a naturalistic world view?3. But what about the arguments against moral realism? The paper looks critically at the argument from “queerness”, the argument from relativity, the argument from explanation, and epistemological arguments.4. The paper concludes with some brief and inadequate remarks on fulfilling the naturalistic project.

Moral disagreement is widely held to pose a threat for metaethical realism and objectivity. In this paper I attempt to understand how it is that moral disagreement is supposed to present a problem for metaethical realism. I do this by going through several distinct (though often related) arguments from disagreement, carefully distinguishing between them, and critically evaluating their merits. My conclusions are rather skeptical: Some of the arguments I discuss fail rather clearly. Others supply with a challenge to realism, but not one we have any reason to believe realism cannot address successfully. Others beg the question against the moral realist, and yet others raise serious objections to realism, but ones that—when carefully stated—can be seen not to be essentially related to moral disagreement. Arguments based on moral disagreement itself have almost no weight, I conclude, against moral realism.