The Earth is the only world known so far to harbor life.
CARL SAGANAll over the world there are enormous numbers of smart, even gifted, people who harbor a passion for science.
More Carl Sagan Quotes
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The cure for a fallacious argument is a better argument, not the suppression of ideas.
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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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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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We are all stardust.
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We are star stuff harvesting sunlight.
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The visions we offer our children shape the future.
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You are worth about 3 dollars worth in chemicals.
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Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
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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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The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.
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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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If I finish a book a week, I will read only a few thousand books in my lifetime, about a tenth of a percent of the contents of the greatest libraries of our time. The trick is to know which books to read.
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We are star stuff which has taken its destiny into its own hands.
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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.
CARL SAGAN