Jonathan Haidt skillfully combines two genres—philosophical wisdom and scientific research—delighting the reader with surprising insights. He explains, for example, why we have such difficulty controlling ourselves and sticking to our plans; why no achievement brings lasting happiness, yet a few changes in your life can have profound effects, and why even confirmed atheists experience spiritual elevation. In a stunning final chapter, Haidt addresses the grand question 'How can I live a meaningful life?,' offering an original answer that draws on the rich inspiration of both philosophy and science.