We are reaching the stage where the problems we must solve are going to become insoluble without computers. I do not fear computers, I fear the lack of them.

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What is really amazing, and frustrating, is mankind's habit of refusing to see the obvious and inevitable until it is there, and then muttering about unforeseen catastrophes.

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Dreams may be impossible, yet still be dreamed.

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People who think they know everything are a great annoyance to those of us who do.

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There are no nations! There is only humanity. And if we don't come to understand that right soon, there will be no nations, because there will be no humanity.

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Self-education is, I firmly believe, the only kind of education there is. The only function of a school is to make self-education easier; failing that, it does nothing.

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There is no belief, however foolish, that will not gather its faithful adherents who will defend it to the death.

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When stupidity is considered patriotism, it is unsafe to be intelligent.

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So the universe is not quite as you thought it was. You'd better rearrange your beliefs, then. Because you certainly can't rearrange the universe.

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Maybe happiness is this: not feeling like you should be elsewhere, doing something else, being someone else.

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