The “happiest man in the world,” Matthieu Ricard balances his Buddhist contemplation of happiness (watch his TEDTalk on the habits of happiness) with an active life as a humanitarian in the Himalayas. Learn more about his projects — and get involved — at the new website for his Karuna-Shechen foundation. Karuna-Shechen brings medical help and education to people in Tibet, Nepal, India and Bhutan.