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

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I believe we are here to do good. It is the responsibility of every human being to aspire to do something worthwhile, to make the world a better place than the one we found.

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Great spirits have always encountered opposition from mediocre minds. The mediocre mind is incapable of understanding the man who refuses to bow blindly to conventional prejudices and chooses instead to express his opinions courageously and honestly.

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

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Success comes from curiosity, concentration, perseverance and self criticism.

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There is no vaccine against stupidity.

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

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Any government is evil if it carries within it the tendency to deteriorate into Tyranny. The danger of such deterioration is more acute in a country in which the government has authority not only over the armed forces but also over every channel of education and information.

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Wisdom is not a product of schooling but of the lifelong attempt to acquire it.

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