In response, I elaborate on my conception of moral reasoning, as well as clarify the structure of debunking arguments and how my cautious optimism is only of the “glass half full” sort. I also explain how rationalism can capture insights purportedly only explained by sentimentalist and Humean views. The reply concludes by clarifying and admitting some limits of the book's scope.

Doris argues that our choices are heavily influenced by forces that we wouldn’t count as genuine reasons. This unsettling conclusion is motivated by a debunking argument so wide-ranging that it isn’t foisted upon us by the sciences. Doris sometimes seems to lower his ambitions when offering instead a skeptical hypothesis argument, but that conflicts with his aims in the book.

May argues that moral skepticism is less plausible than perceptual skepticism if it’s formulated using epistemic closure. In this paper, I argue we should be skeptical of the implausibility thesis. Moral skepticism can be formulated using closure if we combine moral nihilism with a properly formulated evolutionary scenario. Further, I argue that pace May, the phenomenon of ‘imaginative resistance’ isn’t an issue for the moral skeptic; she has an evolutionary explanation of the phenomenon. Thus, we should be skeptical of the (...) implausibility thesis. (shrink)

How exactly do mental disorders affect one’s agency? How might therapeutic interventions help patients regain or improve their autonomy? Do only some disorders excuse morally inappropriate behavior, such as theft or child neglect? Or is there nothing about having a disorder, as such, that affects whether we ought to praise or blame someone for their moral success or failure? Our volume gathers together empirically-informed philosophers who are well equipped to tackle such questions. Contributors specialize in free will, agency, and responsibility, (...) but they are informed by current scientific and clinical approaches to a wide range of psychopathologies, including autism, addiction, Tourette syndrome, personality disorders, depression, dementia, phobias, schizophrenia, and obsessive-compulsive disorder. These conditions exhibit a diverse array of symptoms that can contribute quite differently to being blameworthy or praiseworthy. (shrink)

Arguments attempting to debunk moral beliefs, by showing they are unjustified, have tended to be global, targeting all moral beliefs or a large set of them. Popular debunking arguments point to various factors purportedly influencing moral beliefs, from evolutionary pressures, to automatic and emotionally-driven processes, to framing effects. We show that these sweeping arguments face a debunker’s dilemma: either the relevant factor is not a main basis for belief or it does not render the relevant beliefs unjustified. Empirical debunking arguments (...) in ethics can avoid this predicament, but only if they are refocused on highly selective classes of moral belief. Experimental data can combine with familiar consistency reasoning to reveal that like cases are not being treated alike. Selective debunking arguments are unlikely to yield sweeping sceptical conclusions, but they can lead to rational moral change. (shrink)

The burgeoning science of ethics has produced a trend toward pessimism. Ordinary moral thought and action, we’re told, are profoundly influenced by arbitrary factors and ultimately driven by unreasoned feelings. This book counters the current orthodoxy on its own terms by carefully engaging with the empirical literature. The resulting view, optimistic rationalism, shows the pervasive role played by reason, and ultimately defuses sweeping debunking arguments in ethics. The science does suggest that moral knowledge and virtue don’t come easily. However, despite (...) the heavy influence of automatic and unconscious processes that have been shaped by evolutionary pressures, we needn’t reject ordinary moral psychology as fundamentally flawed or in need of serious repair. Reason can be corrupted in ethics just as in other domains, but a special pessimism about morality in particular is unwarranted. Moral judgment and motivation are fundamentally rational enterprises not beholden to the passions. (shrink)