We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an obscure clod of rock.
CARL SAGANOne of the great commandments of science is: Mistrust arguments from authority.
More Carl Sagan Quotes
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Arguments from authority carry little weight, authorities have made mistakes in the past. They will do so again in the future. Perhaps a better way to say it is that in science there are no authorities; at most, there are experts.
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If it can be destroyed by the truth, it deserves to be destroyed by the truth.
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There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
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Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.
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To live in the hearts we leave behind is to live forever.
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Books break the shackles of time, proof that humans can work magic.
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All over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science.
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Don’t judge everyone else by your own limited experience.
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We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.
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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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You are worth about 3 dollars worth in chemicals.
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Books permit us to voyage through time, to tap the wisdom of our ancestors.
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Stars are phoenixes, rising from their own ashes.
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The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
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Other things being equal, it is better to be smart than to be stupid.
CARL SAGAN