A galaxy is composed of gas and dust and stars – billions upon billions of stars. Every star may be a sun to someone.
CARL SAGANThe Earth is the only world known so far to harbor life.
More Carl Sagan Quotes
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We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.
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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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Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
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We are a way for the cosmos to know itself.
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We are star stuff which has taken its destiny into its own hands.
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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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And you are made of a hundred trillion cells. We are, each of us, a multitude.
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Nature is unsentimental. Death is built in.
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Not all birds can fly. What separates the flyers from the walkers is the ability to take off.
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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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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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Every star may be a sun to someone.
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We are all stardust.
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Books break the shackles of time, proof that humans can work magic.
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Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
CARL SAGAN