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Your books discuss big questions of entire civilizations. How would you encourage others to cultivate the big questions? (1:21) | More videos from Jared Diamond »

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Edward O. Wilson

Biologist, Conservationist, Theorist

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Edward O. Wilson | September 27, 2006 | Wortham Center | The Progressive Forum

Eric Schlosser

Investigative Journalist

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Eric Schlosser | September 24, 2013 | September 30, 2010 | The Progressive Forum

George Soros

Philanthropist and Financier

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George Soros | September 7, 2006 | Hobby Center | The Progressive Forum

Lester Brown

Founder: Earth Policy Institute

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Lester Brown | April 28, 2009 | October 6, 2013 | The Progressive Forum

T. Boone Pickens

Businessman, Energy Leader

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T. Boone Pickens | March 29, 2009 | Wortham Center | The Progressive Forum

Elizabeth Edwards

Humanitarian

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Elizabeth Edwards | May 21, 2008 | Wortham Center | The Progressive Forum

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