W. W. Norton, 2006 ISBN References External links Biography at the Berkeley Social Interaction Laboratory Greater Good Magazine Greater Good Science Center Video: Keltner discusses whether Technology Dependence is De-Evolving Human Emotion, Fora.tv (Los Angeles Public Library, February 5, 2009) Video: We Are Built to Be Kind, published on December 2, 2014 - Dacher Keltner challenges popular notions of human nature and seeks to explain why mammals evolved emotions such as empathy Human Happiness Course by Keltner at UC Berkeley Webcasts Year of birth missing (living people) Living people University of California, Berkeley College of Letters and Science faculty University of California, San Francisco alumni University of California, Santa Barbara alumni Stanford University alumni Positive psychologists