As long as we humans have been thinking about ourselves, we have wondered what the reasons are for the crimes we commit and the actions we take that harm others. It is the basis for theories of good and evil, and requests to do no harm are a foundational part of most religions. Neuroscience has recently added its voice to this dialogue, with brain studies into sociopaths, criminal behavior, and what supports the move toward prosocial living. Join Sarah for an exploration of recent research integrated with her inspiring stories drawn from ten years of volunteering, teaching NVC at a medium security prison.