I don’t want to believe. I want to know.
CARL SAGANAll civilizations become either spacefaring or extinct.
More Carl Sagan Quotes
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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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We make our world significant by the courage of our questions and the depth of our answers.
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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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All civilizations become either spacefaring or extinct.
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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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Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
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We are star stuff harvesting sunlight.
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You have to know the past to understand the present.
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Not explaining science seems to me perverse. When you’re in love, you want to tell the world.
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To live in the hearts we leave behind is to live forever.
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One of the greatest gifts adults can give – to their offspring and to their society – is to read to children.
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Our ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.
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Imagination will often carry us to worlds that never were, but without it we go nowhere.
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The universe seems neither benign nor hostile, merely indifferent.
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Nature is unsentimental. Death is built in.
CARL SAGAN