When we are self-indulgent and uncritical, when we confuse hopes and facts, we slide into pseudoscience and superstition.

Carl Sagan

Carl Sagan

American astronomer, astrophysicist, cosmologist, author

9 November 1934 — 20 December 1996

Demon-Haunted World

Page 27

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Time of publication: August 10, 2013

Length: 121 characters

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