Amazon.com Book Description (ISBN 0664221521, Paperback)

Here Niebuhr probes the fundamental character of the moral life. He finds the key in the concept of responsibility, which implies not only the freedom and flexibility of responsiveness to others but also a guiding ideal of unlimited concern that goes beyond vague norms and narrow codes.

The book is based on lectures delivered by Niebuhr at Glasgow University. James M. Gustafson, who was Niebuhr's colleague at Yale Divinity School, provides a brilliant introduction.