Not all birds can fly. What separates the flyers from the walkers is the ability to take off.
CARL SAGANStars are phoenixes, rising from their own ashes.
More Carl Sagan Quotes
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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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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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Don’t judge everyone else by your own limited experience.
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If we ruin the earth, there is no place else to go.
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The cure for a fallacious argument is a better argument, not the suppression of ideas.
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Across the sea of space, the stars are other suns.
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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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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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You have to know the past to understand the present.
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We are all stardust.
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One of the great commandments of science is: Mistrust arguments from authority.
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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 nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.
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Be grateful everyday for the brief but magnificent opportunity that life provides.
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Understanding is a kind of ecstasy.
CARL SAGAN