He who does not know foreign languages knows nothing of his own.

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  Nothing is more terrible than ignorance in action.

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  Knowing is not enough; we must apply. Willing is not enough; we must do.

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  The desire to appear clever often prevents one from becoming so.

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  The only safety for the vanquished is to hope for no safety.

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  They change their sky, not their soul, who rush across the sea.

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  You may drive out nature with a pitchfork, yet she will always come back.

All aphorisms