How do we judge whether an action is morally right or wrong? If an action is wrong, what reason does that give us not to do it? Why should we give such reasons priority over our other concerns and values? In this book, T. M. Scanlon offers new answers to these questions, as they apply to the central part of morality that concerns what we owe to each other. According to his contractualist view, thinking about right and wrong is thinking about what we do in terms that could be justified to others and that they could not reasonably reject. He shows how the special authority of conclusions...

In a clear and elegant style, T. M. Scanlon reframes current philosophical debates as he explores the moral permissibility of an action. Permissibility may seem to depend on the agent's reasons for performing an action. For example, there seems to be an important moral difference between tactical bombing and a campaign by terrorists--even if the same number of non-combatants are killed--and this difference may seem to lie in the agents' respective aims. However, Scanlon argues that the apparent dependence of permissibility on the agent's reasons in such cases is merely a failure to...