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

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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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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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Show me a satisfied man, and I'll show you a failure.

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Thinking is hard work; that's why so few do it.

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Be a voice not an echo.

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Most people see what is, and never see what can be.

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If you can't explain it simply, you don't understand it well enough.

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Imagination is more important than knowledge. Imagination is the language of the soul. Pay attention to your imagination and you will discover all you need to be fulfilled.

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We cannot get to where we dream of being tomorrow unless we change our thinking today.

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