Science is not only compatible with spirituality; it is a profound source of spirituality.
CARL SAGANExtraordinary claims require extraordinary evidence.
More Carl Sagan Quotes
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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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For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.
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The only thing we’ve found that makes the emptiness bearable, is each other.
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The universe seems neither benign nor hostile, merely indifferent.
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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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If we continue to accumulate only power and not wisdom, we will surely destroy ourselves.
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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 a way of thinking much more than it is a body of knowledge.
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The visions we offer our children shape the future.
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The significance of our lives and our fragile planet is then determined only by our own wisdom and courage.
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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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Not all birds can fly. What separates the flyers from the walkers is the ability to take off.
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Understanding is a kind of ecstasy.
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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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The Earth is a very small stage in a vast cosmic arena.
CARL SAGAN