The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
CARL SAGANWriting is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
More Carl Sagan Quotes
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People are not stupid. They believe things for reasons.
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Across the sea of space, the stars are other suns.
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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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We make our world significant by the courage of our questions and the depth of our answers.
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Better the hard truth, I say, than the comforting fantasy.
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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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The significance of our lives and our fragile planet is then determined only by our own wisdom and courage.
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Science is a way to not fool ourselves.
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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.
CARL SAGAN -
Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
CARL SAGAN -
There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
CARL SAGAN -
Knowing a great deal is not the same as being smart; intelligence is not information alone but also judgement, the manner in which information is coordinated and used.
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You are worth about 3 dollars worth in chemicals.
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Extinction is the rule. Survival is the exception.
CARL SAGAN