He also suggests that those positive emotions are designed by evolution to ultimately ensure the survival of our species. Listen to what he says to say on Survival of the Kindest, an episode of Tapestry with Mary Hynes, presented by Canada's public broadcaster, the CBC.
Dacher Keltner is a professor of psychology at the University of California, Berkeley, and Co-Director of the Greater Good Science Centre at UC Berkeley. Keltner's book, Born to Be Good: The Science of a Meaningful Life, is published by W.W. Norton and Company.