He who knows does not speak, He who speaks does not know.

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• He who knows, does not speak. He who speaks, does not know.
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• He who knows others is clever; he who knows himself is enlightened.
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• The good man is the teacher of the bad, And the bad is the material from which the good may learn.
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• He who knows that enough is enough will always have enough.
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• He who knows others is wise. He who knows himself is enlightened.
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• He who lives out his days has had a long life.
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