To get a free copy of the Infectious Generosity book, visit ted.com/generosity Will McCaskill is a moral philosopher and the cofounder of the Effective Altruism Movement, a school of thought that tries to answer the question: How can we do as much good as possible? Chris and Will talk about how...

To get a free copy of the Infectious Generosity book, visit ted.com/generosity. From Taiwan to Rwanda, artist Lily Yeh has traveled all over the world in pursuit of more than just aesthetic pleasure — and she’s activating local communities on this journey. Chris and Lily chat about Lily’s...