Expanding Circle

Peter Singer is the Ira W. DeCamp Professor of Bioethics in the University Center for Human Values at Princeton University and Laureate Professor at the University of Melbourne. His books include "Animal Liberation", "Practical Ethics", "Rethinking Life and Death", "One World," and, most recently, "The Life You Can Save".

• Preface to the 2011 Edition xi Preface xv 1 The Origins of Altruism 3 2 The Biological Basis of Ethics 23 3 From Evolution to Ethics? 54 4 Reason 87 5 Reason and Genes 125 6 A New Understanding of Ethics 148 Notes on Sources 175 Afterword to the 2011 Edition 187 Index 205

"Singer's theory of the expanding circle remains an enormously insightful concept, which reconciles the existence of human nature with political and moral progress. It was also way ahead of its time. . . . It's wonderful to see this insightful book made available to a new generation of readers and scholars."—Steven Pinker, author of The Blank Slate and The Stuff of Thought