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You have to know the past to understand the present.

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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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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...more

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Life is but a momentary glimpse of the wonder of this astounding universe, and it is sad to see so many dreaming it away on spiritual fantasy.

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All that we have seen is something of a vast and intricate and lovely universe. There is no particular theological conclusion that comes out of an exe...more

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The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.

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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...more

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We are star stuff harvesting sunlight.

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To live in the hearts we leave behind is to live forever.

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Adolf Hitler! Ken, it makes me furious. Forty million people die to defeat that megalomaniac, and he's the star of the first broadcast to another civi...more

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For thousands of years humans were oppressed— as some of us still are— by the notion that the universe is a marionette whose strings are pulled by a g...more

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The Cosmos is all that is or was or ever will be. Our feeblest contemplations of the Cosmos stir us -- there is a tingling in the spine, a catch in th...more

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Books permit us to voyage through time, to tap the wisdom of our ancestors. The library connects us with the insight and knowledge, painfully extracte...more

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The lifetime of a human being is measured by decades, the lifetime of the Sun is a hundred million times longer. Compared to a star, we are like mayfl...more

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The old exhortations to nationalist fervor and jingoist pride have begun to lose their appeal. Perhaps because of rising standards of living, children...more