15+ Carl Sagan Quotes On Belief Pictures. Enjoy the best carl sagan quotes at brainyquote. Carl sagan knew how to inspire wonder and curiosity.

60 Carl Sagan Quotes On Humanity Life The Universe The Cosmos from cdn.everydaypower.com

Extraordinary claims require extraordinary evidence. » carl sagan. Inspirational carl sagan quotes about life here on earth & beyond in the cosmos. Enjoy the best carl sagan quotes at brainyquote.

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I consider it an extremely dangerous doctrine, because the more the last way for skeptics to get the attention of bright, curious, intelligent people is to belittle or condescend or to show arrogance toward their beliefs. Extinction is the rule, survival is the exception. Extraordinary claims require extraordinary evidence. » carl sagan. 1446 quotes from carl sagan: