" If there is any hope for changing the world for the better, from reducing family violence to reversing overpopulation and international conflict, economists, educators, and political leaders will need to base their interventions on a sound understanding of what people are really like, not on some fairy-tale version of what we would like them to be. "

― , Sex, Murder, and the Meaning of Life: A Psychologist Investigates How Evolution, Cognition, and Complexity are Revolutionizing our View of Human Nature