Cynicism is making us sick; Stanford Psychologist Dr. Jamil Zaki has the cure--a "ray of light for dark days" (Adam Grant, #1 New York Times bestselling author). In 1972, half of Americans agreed that most people can be trusted; by 2018, only a third did. Different generations, genders, religions, and political parties all think human virtue is evaporating. Cynicism is an understandable response to a world full of injustice...