A problem defined, is a problem half solved.

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The stupid are invincible.

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The only thing more dangerous than ignorance is arrogance

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Let every man judge according to his own standards, by what he has himself read, not by what others tell him.

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Weak people revenge. Strong people forgive. Intelligent People Ignore.

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Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.

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There is no vaccine against stupidity.

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

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Failure is success in progress

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

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