Carl Sagan Welcome to our collection of popular quotes by

Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.

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• Books

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

We are star stuff harvesting sunlight.

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• Life

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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• Truth

The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five.

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• Humor

In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with Annie.[Dedication to Sagan's wife, Ann Druyan, in Cosmos]

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• Time

If you wish to make an apple pie from scratch, you must first invent the universe.

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• Science

We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.

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• Science

We are a way for the cosmos to know itself.

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• Science

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

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• Life

We are star stuff which has taken its destiny into its own hands.

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• Science

I don't want to believe. I want to know.

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• Education

Somewhere, something incredible is waiting to be known.

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• Science

The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what's true.

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• Truth

The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.

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• Science