There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
CARL SAGANThe price we pay for anticipation of the future is anxiety about it.
More Carl Sagan Quotes
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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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The universe is a pretty big place. If it’s just us, seems like an awful waste of space.
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Except in pure mathematics, nothing is known for certain (although much is certainly false).
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I’ve always thought an agnostic is an atheist without the courage of his convictions.
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The cure for a fallacious argument is a better argument, not the suppression of ideas.
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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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A galaxy is composed of gas and dust and stars – billions upon billions of stars. Every star may be a sun to someone.
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The universe is not required to be in perfect harmony with human ambition.
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Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars.
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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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Better the hard truth, I say, than the comforting fantasy.
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To live in the hearts we leave behind is to live forever.
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The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.
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We live on a mote of dust suspended in a sunbeam.
CARL SAGAN