There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
CARL SAGANI 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.
More Carl Sagan Quotes
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The very act of understanding is a celebration of joining, merging, even if on a very modest scale, with the magnificence of the Cosmos.
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And you are made of a hundred trillion cells. We are, each of us, a multitude.
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For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.
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Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.
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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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To live in the hearts we leave behind is to live forever.
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Every kid starts out as a natural-born scientist, and then we beat it out of them. A few trickle through the system with their wonder and enthusiasm for science intact.
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I’ve always thought an agnostic is an atheist without the courage of his convictions.
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A book is made from a tree. It is an assemblage of flat, flexible parts (still called “leaves”) imprinted with dark pigmented squiggles.
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Where we have strong emotions, we’re liable to fool ourselves.
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You have to know the past to understand the present.
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All civilizations become either spacefaring or extinct.
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The absence of evidence is not evidence of absence.
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If we continue to accumulate only power and not wisdom, we will surely destroy ourselves.
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I don’t want to believe. I want to know.
CARL SAGAN