Source : Reddit AMA, www.reddit.com. March 1, 2012.
Neil deGrasse Tyson#Motivation Quotes #Philosophy Quotes #Successful Quotes
Ann Druyan
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Bill Nye
Educator
Carl Sagan
Astronomer
Lawrence M. Krauss
Physicist
Michio Kaku
Physicist
Richard Dawkins
Ethologist
Sam Harris
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Seth MacFarlane
Actor
Stephen Hawking
Physicist