You are worth about 3 dollars worth in chemicals.
CARL SAGANThe universe is a pretty big place. If it’s just us, seems like an awful waste of space.
More Carl Sagan Quotes
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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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The significance of our lives and our fragile planet is then determined only by our own wisdom and courage.
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Your god is too small for my universe.
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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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Except in pure mathematics, nothing is known for certain (although much is certainly false).
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The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what’s true.
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Science is a way to not fool ourselves.
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What an astonishing thing a book is.
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Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
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Nature is unsentimental. Death is built in.
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Understanding is a kind of ecstasy.
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For small creatures such as we the vastness is bearable only through love.
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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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Other things being equal, it is better to be smart than to be stupid.
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Science is an attempt, largely successful, to understand the world, to get a grip on things, to get hold of ourselves, to steer a safe course.
CARL SAGAN