Readers with no formal training in philosophy will understand and profit from this lucid book, which builds bridges between past and present, fact and value, scholarly and popular.' Peter J. Kreeft, Boston College 'An enormously helpful book. It provides the necessary historical background for understanding the philosophical issue that lies at the heart of our current civilizational crisis - the basis of values in fact. Even philosophers, when they discuss this issue, do not usually know all the data, the details of the past conversation on this issue. Yet even readers with no formal training in philosophy will understand and profit from this lucid book, which builds bridges between past and present, fact and value, scholarly and popular.' Peter J. Kreeft, Boston College '...an eminently readable critique' Keith E. Yandell, University of Wisconsin-Madison '...a fine concise history of ethics and a stimulating introduction of the history of philosophy.' C. Stephen Evans, Calvin College