The Earth is a very small stage in a vast cosmic arena.
CARL SAGANPerhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.
More Carl Sagan Quotes
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The absence of evidence is not evidence of absence.
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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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Science is an attempt, largely successful, to understand the world, to get a grip on things, to get hold of ourselves, to steer a safe course.
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Science is not only compatible with spirituality; it is a profound source of spirituality.
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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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Don’t judge everyone else by your own limited experience.
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To live in the hearts we leave behind is to live forever.
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If we ruin the earth, there is no place else to go.
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We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an obscure clod of rock.
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Extraordinary claims require extraordinary evidence.
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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 visions we offer our children shape the future.
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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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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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Books break the shackles of time, proof that humans can work magic.
CARL SAGAN