One of the great commandments of science is: Mistrust arguments from authority.
CARL SAGANBooks are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
More Carl Sagan Quotes
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There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
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Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.
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The Earth is the only world known so far to harbor life.
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Except in pure mathematics, nothing is known for certain (although much is certainly false).
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Nature is unsentimental. Death is built in.
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The only thing we’ve found that makes the emptiness bearable, is each other.
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Understanding is a kind of ecstasy.
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We are a way for the cosmos to know itself.
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Extraordinary claims require extraordinary evidence.
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Nothing disturbs me more than the glorification of stupidity.
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Those at too great a distance may, I am well are, mistake ignorance for perspective.
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Every kid starts out as a natural-born scientist, and then we beat it out of them. A few trickle through the system with their wonder and enthusiasm for science intact.
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People are not stupid. They believe things for reasons.
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An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.
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Books permit us to voyage through time, to tap the wisdom of our ancestors.
CARL SAGAN