There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
CARL SAGANAny faith that admires truth, that strives to know God, must be brave enough to accommodate the universe.
More Carl Sagan Quotes
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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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I think the health of our civilization, the depth of our awareness about the underpinnings of our culture and our concern for the future can all be tested by how well we support our libraries.
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Nothing disturbs me more than the glorification of stupidity.
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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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Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
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If you wish to make an apple pie from scratch, you must first invent the universe.
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If it can be destroyed by the truth, it deserves to be destroyed by the truth.
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We are a way for the cosmos to know itself.
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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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I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves.
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Understanding is a kind of ecstasy.
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The absence of evidence is not evidence of absence.
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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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The significance of our lives and our fragile planet is then determined only by our own wisdom and courage.
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You have to know the past to understand the present.
CARL SAGAN