Carl Sagan Quotes (144 quotes)
“What counts is not what sounds plausible, not what we would like to believe, not what one or two witnesses claim, but only what is supported by hard evidence rigorously and skeptically examined. Extraordinary claims require extraordinary evidence.”
1 min 10 sec - Cosmos: A Personal Voyage (1990 Update)
“History is full of people who out of fear or ignorance or the lust for power have destroyed treasures of immeasurable value which truly belong to all of us. We must not let it happen again.”
36 min 20 sec - Cosmos: A Personal Voyage (1990 Update)
“Since, in the long run, every planetary society will be endangered by impacts from space, every surviving civilization is obliged to become spacefaring — not because of exploratory or romantic zeal, but for the most practical reason imaginable: staying alive.”
Pale Blue Dot: A Vision of the Human Future in Space (1994)
“A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.”
Chapter 14 (p. 244) - Contact (1985)
“For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.”
Ch. 1 : The Most Precious Thing, p. 12 - The Demon-Haunted World : Science as a Candle in the Dark (1995)
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Born: November 9, 1934
Died: December 20, 1996 (aged 62)
Bio: Carl Edward Sagan was an American astronomer, astrophysicist, cosmologist, author, science popularizer, and science communicator in astronomy and natural sciences. He spent most of his career as a professor of astronomy at Cornell University where he directed the Laboratory for Planetary Studies.