I don't fear God- I fear His believers.

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Keeping an active mind has been vital to my survival, as has been maintaining a sense of humor.

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Look up at the stars, not down at your feet.

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Love the neighbor. But don't get caught.

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The wise never marry, and when they marry they become otherwise.

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The thing about smart people is that they seem like crazy people to dumb people.

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What is important is that we have the ability to create.

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I would see the end of physics as we know it, but now I think the wonder of discovery will continue long after I am gone. We are close to some of these answers, but we are not there yet.

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[If] there were such a God, I would like to ask however did he think of anything as complicated as M-theory in eleven dimensions.

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Nothing is better than reading and gaining more and more knowledge.

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