Angela Duckworth is the Rosa Lee and Egbert Chang Professor of Psychology at the University of Pennsylvania and the Founder and CEO of Character Lab, a not-for-profit whose mission is to advance the science and practice of character development. She’s also the author of Grit, a New York Timesbestseller that examines why some people succeed and others fail, and why talent is hardly a guarantor of success. Angela and Shane discuss whether human behavior is constant or circumstantial, the mindsets that help us succeed in life, developing our passion, and personal rules for success.