Thomas Gilovich is the Irene Blecker Rosenfeld professor of psychology and co-director of the Center for Behavioral Economics and Decision Research at Cornell University. He has taught social psychology for more than 35 years and is the recipient of the Russell Distinguished Teaching Award at Cornell. His research focuses on judgment, decision making, and well-being. He is a member of the American Academy of Arts and Sciences and a fellow of the American Psychological Society, the American Psychological Association, the Society for Personality and Social Psychology, the Society of Experimental Social Psychology, and the Committee for Skeptical Inquiry. Dacher Keltner is the Thomas and Ruth Ann Hornaday professor of psychology and the director of the Greater Good Science Center at the University of California, Berkeley. He has taught social psychology for the past 18 years and is the recipient of the Distinguished Teaching Award for Letters and Sciences. His research focuses on the prosocial emotions (such as love, sympathy, and gratitude), morality, and power. Other awards include the Western Psychological Association’s award for outstanding contribution to research, the Positive Psychology Prize for excellence in research, and the Ed and Carol Diener mid-career award for research excellence in social psychology. He is a fellow of the American Psychological Association, the American Psychological Society, and the Society for Personality and Social Psychology. In 2008, the Utne Reader listed Dacher as one of the 50 visionaries changing the world. Richard E. Nisbett is Theodore M. Newcomb Distinguished University Professor of Psychology at the University of Michigan and Research Professor at Michigan’s Institute for Social Research. He has taught courses in social psychology, cultural psychology, cognitive psychology, and evolutionary psychology. His research focuses on how people from different cultures think, perceive, feel, and act in different ways. He is the recipient of the Distinguished Scientific Contribution Award of the American Psychological Association and the William James Fellow Award of the American Psychological Society and is a member of the National Academy of Sciences and the American Academy of Arts and Sciences.