Anger can be a very good thing. Like when sheer outrage led human rights activist and Nobel Peace Prize Laureate Kailash Satyarthi to free 83,000 children from slavery. “For centuries, we were taught anger is bad. Everyone taught us to control and suppress our anger. But I ask ‘why’? Why can’t we use our anger to challenge and change the evils of the world?” Recorded recently in Vancouver, this powerful TED Talk offers an authentic and inspiring perspective on a very human, potentially tremendously powerful emotion that ought to be put to good use—not squashed.