The premier political philosopher of his day, John Rawls, in three decades of teaching at Harvard, has had a profound influence on the way philosophical ethics is approached and understood today. This book brings together the lectures that inspired a generation of students--and a regeneration of moral philosophy. It invites readers to learn from the most noted exemplars of modern moral philosophy with the inspired guidance of one of contemporary philosophy's most noteworthy practitioners and teachers.

Central to Rawls's approach is the idea that respectful attention to the great texts of our tradition can lead to a fruitful exchange of ideas across the centuries. In this spirit, his book engages thinkers such as Leibniz, Hume, Kant, and Hegel as they struggle in brilliant and instructive ways to define the role of a moral conception in human life. The lectures delineate four basic types of moral reasoning: perfectionism, utilitarianism, intuitionism, and--the ultimate focus of Rawls's course--Kantian constructivism. Comprising a superb course on the history of moral philosophy, they also afford unique insight into how John Rawls has transformed our view of this history.

This study of G. E. Moore’s work in moral philosophy draws upon a close examination of the early essays that preceded the writing of Principia Ethica in order to ground the author’s view that Moore’s famous "naturalistic fallacy argument" of Principia has been widely misunderstood. At the time of his death in 1986, Robert Peter Sylvester was in the process of preparing this book for publication. That process has been brought to completion by Ray Perkins, Jr., and R. W. Sleeper. Sylvester’s reappraisal of the moral philosophy of G. E. Moore argues that criticism of the work of this major twentieth-century British philosopher has been based on misinterpretation of his unified position. He treats Moore’s ideas about "What is Good?", "What things are Good?" and "What ought we to do?" as forming a coherent system. 

To bring this work up to date since the author’s death, the editors have provided a bibliographic essay following each chapter in which recent scholarship is discussed.