There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
CARL SAGANDon’t judge everyone else by your own limited experience.
More Carl Sagan Quotes
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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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We are a way for the cosmos to know itself.
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Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.
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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 all stardust.
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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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Science is not only compatible with spirituality; it is a profound source of spirituality.
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Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.
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The Earth is the only world known so far to harbor life.
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If it can be destroyed by the truth, it deserves to be destroyed by the truth.
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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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Science is a way to not fool ourselves.
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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 harvesting sunlight.
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The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what’s true.
CARL SAGAN