Favorite talks
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Lisa Kristine: Photos that bear witness to modern slavery
19:21 Posted: Aug 2012
Views: 1,034,426 | Comments: 348
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Larry Smith: Why you will fail to have a great career
15:15 Posted: Mar 2012
Views: 1,635,200 | Comments: 679
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Gordon Brown on global ethic vs. national interest
17:10 Posted: Dec 2009
Views: 214,985 | Comments: 205
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Chris Abani: On humanity
16:14 Posted: Jul 2008
Views: 412,893 | Comments: 118
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Steven Pinker: The surprising decline in violence
19:15 Posted: Sep 2007
Views: 1,230,552 | Comments: 504