Ai Weiwei: 'Life is never guaranteed to be safe'
Ai Weiwei, the Chinese artist who will soon take over Tate Modern's Turbine Hall, on why he wants to tell people that it's OK to speak out.
Other Videos That May Interest You:
Bryan Stevenson: We Need to Talk About an Injustice
In an engaging and personal talk -- with cameo appearances from his grandmother and Rosa Parks -- human rights lawyer Bryan Stevenson shares some hard truths about America's justice system, starting with a massive imbalance along racial lines: a third of the country's black male population has been incarcerated at some point in their lives.
Optical Illusion: Perspective is Everything
Definition of "illusion": something that deceives by producing a false or misleading impression of reality.
Ramona Pierson: An Unexpected Place of Healing
When Ramona Pierson was 22, she was hit by a drunk driver and spent 18 months in a coma. At TEDxDU she tells the remarkable story of her recovery -- drawing on the collective skills and wisdom of a senior citizens' home.
True Humanity At Its Finest
When this autistic man started having trouble singing the national anthem, something happened that could bring you to tears. What an amazing display of humanity. It's great to see that there is still goodness in the world.
Daniel Goldstein: The Battle Between Your Present and Future Self
Every day, we make decisions that have good or bad consequences for our future selves. (Can I skip flossing just this one time?) Daniel Goldstein makes tools that help us imagine ourselves over time, so that we make smart choices for Future Us.