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

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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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Everyone knew it was impossible, until a fool who didn't know came along and did it.

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

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

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I must be willing to give up what I am in order to become what I will be.

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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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The state is made for man, not man for the state.... That is to say, the state should be our servant and not we its slaves

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