Carl Sagan quote: The vast distances that separate the stars are providential. Beings and worlds are quarantined from one another. The quarantine is ...

The vast distances that separate the stars are providential. Beings and worlds are quarantined from one another. The quarantine is lifted only for those with sufficient self-knowledge and judgment to have safely traveled from star to star.

~ Carl Sagan ~

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The vast distances that separate the stars are providential. Beings and worlds are quarantined from ...

Picture of Carl Sagan — Carl SaganPale Blue Dot: A Vision of the Human Future in Space

More Carl Sagan quotes

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Since, in the long run, every planetary civilization will be endangered by impacts from space, every surviving civilization is obliged to become space...

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A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one p...

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There is a wide yawning black infinity. In every direction the extension is endless, the sensation of depth is overwhelming. And the darkness is immor...

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Birds know, better than humans, not to spoil the nest.

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For all its material advantages, the sedentary life has left us edgy, unfulfilled. Even after 400 generations in villages and cities, we haven’t forgo...

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We are the only species on the planet, so far as we know, to have invented a communal memory stored neither in our genes nor in our brains. The wareho...

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Billions of years from now our sun, then a distended red giant star, will have reduced Earth to a charred cinder. But the Voyager record will still be...

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Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. Books break the sh...

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The suppression of uncomfortable ideasmay be common in religion and politics, but it is not the path to knowledge; it has no placein the endeavor of s...

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Across the sea of space, the stars are other suns.

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In all our searching, the only thing we've found that makes the emptiness bearable is each other.

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I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will continue. But much as I want to be...

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The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and ...

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Observation: I can’t see a thing.Conclusion: Dinosaurs.

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[an encounter in space] "Some celestial event. No--no words--no words to describe it. Poetry! They should have sent a poet. So beautiful. So beautiful...