I don’t want to believe. I want to know.
CARL SAGANThe Earth is the only world known so far to harbor life.
More Carl Sagan Quotes
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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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You have to know the past to understand the present.
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Where we have strong emotions, we’re liable to fool ourselves.
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We all have a thirst for wonder. It’s a deeply human quality. Science and religion are both bound up with it.
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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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Nature is always more subtle, more intricate, more elegant than what we are able to imagine.
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Extraordinary claims require extraordinary evidence.
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Those at too great a distance may, I am well are, mistake ignorance for perspective.
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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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Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
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Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.
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I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves.
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The absence of evidence is not evidence of absence.
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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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Be grateful everyday for the brief but magnificent opportunity that life provides.
CARL SAGAN