There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
CARL SAGANBooks break the shackles of time, proof that humans can work magic.
More Carl Sagan Quotes
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Extraordinary claims require extraordinary evidence.
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The Earth is a very small stage in a vast cosmic arena.
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The notion that science and spirituality are somehow mutually exclusive does a disservice to both.
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One of the great commandments of science is: Mistrust arguments from authority.
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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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We are star stuff harvesting sunlight.
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The only thing we’ve found that makes the emptiness bearable, is each other.
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The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
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The universe is a pretty big place. If it’s just us, seems like an awful waste of space.
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Science is a way of thinking much more than it is a body of knowledge.
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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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Other things being equal, it is better to be smart than to be stupid.
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An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.
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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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Better the hard truth, I say, than the comforting fantasy.
CARL SAGAN