Develops and defends a version of a desire-based, internalist account of what normative reasons are, and counters it with an internalist defense of universal moral reason built on Kant's formula of humanity.

This book attempts to place a realist view of ethics (the claim that there are facts of the matter in ethics as elsewhere) within a broader context. It starts with a discussion of why we should mind about the difference between right and wrong, asks what account we should give of our ability to learn from our moral experience, and looks in some detail at the different sorts of ways in which moral reasons can combine to show us what we should do in the circumstances. The second half of the book uses these results to mount an attack on consequentialism in ethics, arguing that there are more sorts of reasons around than consequentialists can even dream of.

“Surprising and remarkable…Toggling between big ideas, technical details, and his personal intellectual journey, Greene writes a thesis suitable to both airplane reading and PhD seminars.”—The Boston Globe Our brains were designed for tribal life, for getting along with a select group of others (Us) and for fighting off everyone else (Them). But modern times have forced the world’s tribes into a shared space, resulting in epic clashes of values along with unprecedented opportunities. As the world shrinks, the moral lines that divide us become more salient and more puzzling. We fight over everything from tax codes to gay marriage to global warming, and we wonder where, if at all, we can find our common ground. A grand synthesis of neuroscience, psychology, and philosophy, Moral Tribes reveals the underlying causes of modern conflict and lights the way forward. Greene compares the human brain to a dual-mode camera, with point-and-shoot automatic settings (“portrait,” “landscape”) as well as a manual mode. Our point-and-shoot settings are our emotions—efficient, automated programs honed by evolution, culture, and personal experience. The brain’s manual mode is its capacity for deliberate reasoning, which makes our thinking flexible. Point-and-shoot emotions make us social animals, turning Me into Us. But they also make us tribal animals, turning Us against Them. Our tribal emotions make us fight—sometimes with bombs, sometimes with words—often with life-and-death stakes. A major achievement from a rising star in a new scientific field, Moral Tribes will refashion your deepest beliefs about how moral thinking works and how it can work better.

Distinguished by its readability and scope, Moral Reasons explains how to think critically about issues in ethics and political philosophy. After a detailed overview of moral reasoning―including dozens of exercises―the text guides readers through the theories and arguments of philosophers from Plato to Peter Singer. Among the topics explored are moral skepticism, abortion, euthanasia, vegetarianism, political authority, punishment, and war. Ideal as a main text for courses in introductory or applied ethics or as a supplemental text for courses in political philosophy, this book offers one of the most diverse investigations of moral philosophy there is to date.

Moral Rights and Their Grounds offers a novel theory of rights based on two distinct views. The first—the value view of rights—argues that for a person to have a right is to be valuable in a certain way, or to have a value property. This special type of value is in turn identified by the reasons that others have for treating the right holder in certain ways, and that correlate with the value in question. David Alm then argues that the familiar agency view of rights should be replaced with a different version according to which persons’ rights, and thus at least in part their value, are based on their actions rather than their mere agency. This view, which Alm calls exercise-based rights, retains some of the most valuable features of the agency view while also defending it against common objections concerning right loss. This book presents a unique conception of exercise-based rights that will be of keen interest to ethicists, legal philosophers, and political philosophers interested in rights theory.

Dale Dorsey considers one of the most fundamental questions in philosophical ethics: to what extent do the demands of morality have normative authority over us and our lives? Must we conform to moral requirements? Most who have addressed this question have treated the normative significance of morality as simply a fact to be explained. But Dorsey argues that this traditional assumption is misguided. According to Dorsey, not only are we not required to conform to moral demands, conforming to morality's demands will not always even be normatively permissible---moral behavior can be (quite literally) wrong. This view is significant not only for understanding the content and force of the moral point of view, but also for understanding the basic elements of how one ought to live.

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 our moral minds, 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.