The height of stupidity is most clearly demonstrated by the individual who ridicules something he knows nothing about.

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Creativity is intelligence having fun.

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Never underestimate your own ignorance.

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Do not grow old, no matter how long you live. Never cease to stand like curious children before the Great Mystery into which we were born.

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Don't listen to their words, fix your attention on their deeds.

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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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I don't need to know everything, I just need to know where to find it, when I need it

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Nothing causes more consternation in a group of hypocrits than one honest man.

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Our death is not an end if we can live on in our children and the younger generation. For they are us; our bodies are only wilted leaves on the tree of life.

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Cherish the questions, for the answers keep changing.

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