The difference between stupidity and genius is that genius has its limits.

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If people are good because they fear punishment, and hope for reward, then we are a sorry lot indeed.

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Show me a satisfied man, and I'll show you a failure.

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Information is not knowledge. The only source of knowledge is experience. You need experience to gain wisdom.

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It may be possible to fight intolerance, stupidity, and fanaticism seperately, but when they come together there is no hope.

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What you can't imagine, you can't discover.

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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

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The world will not be destroyed by those who do evil, but by those who watch them without doing anything.

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If one day you have to choose between the world and love, remember this: If you choose the world you’ll be left without love, but if you choose love, with it you will conquer the world

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Blind belief in authority is the greatest enemy of truth.

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