Abstract
The book is divided into four sections, and contains two central arguments. The goal of the first argument is to show that generally accepted concepts in moral theory have an irreducibly second-personal character and that it is impossible to fully understand many central moral ideas without it. Here, by evaluating a broad range of literature in moral theory and articulating the second-personal aspect of each, Darwall elaborates on the interpersonal nature of moral obligation. The detailed discussion presents some well-known moral theories, and while emphasizing the Deontological perspective, highlights the second-personal character of all moral theories; a perspective that has, in the past, gone unnoticed. However, as Darwall himself acknowledges, the first argument cannot vindicate the very ideas it analyzes. He thus dedicates the second part of the book to a reverse-strategy: instead of arguing for the existence of a second-person foundation in moral theory, Darwall sets out to show that the presuppositions of the second-person standpoint include the moral law in them. In this second argument, Darwall explains that the second-personal standing can only be justified within a circle of four interrelated ideas (claim, accountability, second-personal reason, and second-personal authority), and that this circle necessarily excludes instances of coercion.