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.
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Simon Sinek talks culture with Zappos CEO Tony Hsieh
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Antonio Damasio: The Quest to Understand Consciousness
Every morning we wake up and regain consciousness -- that is a marvelous fact -- but what exactly is it that we regain? Neuroscientist Antonio Damasio uses this simple question to give us a glimpse into how our brains create our sense of self.
Faith Jegede: What I've Learned From My Autistic Brothers
In this video, Faith Jegede tells the moving and funny story of growing up with her two brothers, both autistic.