Carl Sagan Quotes, Inquiry Quotes, Scientist Quotes

In exchange for freedom of inquiry, scientists are obliged to explain their work.

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Humans are very good at dreaming, although you'd never know it from your television.

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When you make the finding yourself - even if you're the last person on Earth to see the light - you'll never forget it.

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Extraordinary observations require extraordinary evidence to make them believable.

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Once we overcome our fear of being tiny, we find ourselves on the threshold of a vast and awesome Universe that utterly dwarfs — in time, in space, and in potential — the tidy anthropocentric proscenium of our ancestors.

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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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An organism at war with itself is doomed.

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If we do not speak for Earth, who will? If we are not committed to our own survival, who will be?

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Atoms are mainly empty space. Matter is composed chiefly of nothing.

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Where did God come from? If we decide this is an unanswerable question why not save a step and conclude that the origin of the universe is an unanswerable question.

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Tags : Carl Sagan Quotes , Religion Quotes , Why Not Quotes

A single message from space will show that it is possible to live through technological adolescence. . . . It is possible that the future of human civilization depends on the receipt of interstellar messages.

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I hold that popularization of science is successful if, at first, it does no more than spark the sense of wonder.

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It is all a matter of time scale. An event that would be unthinkable in a hundred years may be inevitable in a hundred million.

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A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.

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Many religions have attempted to make statues of their gods very large, and the idea, I suppose, is to make us feel small. But if that's their purpose, they can keep their paltry icons. We need only look up if we wish to feel small.

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Every cell is a triumph of natural selection, and we’re made of trillions of cells. Within us, is a little universe.

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The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge, and there's no place for it in the endeavor of science. We do not know beforehand where fundamental insights will arise from about our mysterious and lovely solar system. The history of our study of our solar system shows us clearly that accepted and conventional ideas are often wrong, and that fundamental insights can arise from the most unexpected sources.

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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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One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.

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We invest far off places with a certain romance... Long summers, mild winters, rich harvests, plentiful game; none of them lasts for ever. Your own life, or your bands, or even your species - might be owed to a restless few, drawn by a craving they can hardly articulate or understand, to undiscovered lands, and new worlds.

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