If you wish to make an apple pie from scratch, you must first invent the universe.
CARL SAGANAnd you are made of a hundred trillion cells. We are, each of us, a multitude.
More Carl Sagan Quotes
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Across the sea of space, the stars are other suns.
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The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.
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Somewhere, something incredible is waiting to be known.
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Books break the shackles of time, proof that humans can work magic.
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If we ruin the earth, there is no place else to go.
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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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And you are made of a hundred trillion cells. We are, each of us, a multitude.
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The visions we offer our children shape the future.
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All civilizations become either spacefaring or extinct.
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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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Extraordinary claims require extraordinary evidence.
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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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Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.
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Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
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You are worth about 3 dollars worth in chemicals.
CARL SAGAN