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.
CARL SAGANYou are worth about 3 dollars worth in chemicals.
More Carl Sagan Quotes
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One of the great commandments of science is: Mistrust arguments from authority.
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I’ve always thought an agnostic is an atheist without the courage of his convictions.
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Better the hard truth, I say, than the comforting fantasy.
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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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The notion that science and spirituality are somehow mutually exclusive does a disservice to both.
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A book is made from a tree. It is an assemblage of flat, flexible parts (still called “leaves”) imprinted with dark pigmented squiggles.
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Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.
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We live on a mote of dust suspended in a sunbeam.
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Those at too great a distance may, I am well are, mistake ignorance for perspective.
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The visions we offer our children shape the future.
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When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion.
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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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The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.
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Arguments from authority carry little weight, authorities have made mistakes in the past. They will do so again in the future. Perhaps a better way to say it is that in science there are no authorities; at most, there are experts.
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The Earth is the only world known so far to harbor life.
CARL SAGAN