All civilizations become either spacefaring or extinct.
CARL SAGANIf it can be destroyed by the truth, it deserves to be destroyed by the truth.
More Carl Sagan Quotes
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We are star stuff harvesting sunlight.
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Don’t judge everyone else by your own limited experience.
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We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.
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If you wish to make an apple pie from scratch, you must first invent the universe.
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One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.
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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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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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There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
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We all have a thirst for wonder. It’s a deeply human quality. Science and religion are both bound up with it.
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We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an obscure clod of rock.
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Science is an attempt, largely successful, to understand the world, to get a grip on things, to get hold of ourselves, to steer a safe course.
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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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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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Imagination will often carry us to worlds that never were, but without it we go nowhere.
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The visions we offer our children shape the future.
CARL SAGAN