Our lives will be measured by what we do for others

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There is no vaccine against stupidity.

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I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.

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If you want different results, do not do the same things.

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Don't listen to the person who has the answers; listen to the person who has the questions.

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When I have one week to solve a seemingly impossible problem, I spend six days defining the problem. Then, the solution becomes obvious.

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Three great forces rule the world: stupidity, fear and greed.

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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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The value of a college education is not the learning of many facts but the training of the mind to think

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Be kind to people who are different from you.

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