In the spring of 2010, Harvard Business School’s graduating class asked HBS professor Clay Christensen to address them—but not on how to apply his principle

Revised edition of the best-selling memoir that has been read by over a million people worldwide with translations in 29 languages. After too many years of unfu

Contentment is a super power. If you can learn the skills of contentment, your life will be better in so many ways: You’ll enjoy your life more. Your relation

Argues that for the first time in history we're in a position to end extreme poverty throughout the world, both because of our unprecedented wealth and advances