Matthieu Ricard is a Buddhist monk, author, translator, and photographer. He is the author of several books including The Monk and the Philosopher, a dialogue with his father; The Quantum and the Lotus, a dialogue with astrophysicist Trinh Xuan Thuan; Happiness: A Guide to Developing Life's Most Important Skill; and Why Meditate? His books have been translated into over twenty languages. He has lived, studied, and worked in the Himalayan region for over forty years. Four million people have viewed his TED talk on happiness.