Everything that exists in your life, does so because of two things: something you did or something you didn't do.

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Condemnation before investigation is the highest form of ignorance.

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Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.

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It has become appallingly obvious that our technology has exceeded our humanity.

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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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Knowledge and ego are directly related. the less knowledge, the greater the ego

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Thinking is hard work; that's why so few do 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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Logic can take you from point A to point B. Imagination can take you wherever you want

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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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