Oysters open completely when the moon is full; and when the crab sees one it throws a piece of stone or seaweed into it and the oyster cannot close again so that it serves the crab for meat. Such is the fate of him who opens his mouth too much and thereby puts himself at the mercy of the listener.

Leonardo da Vinci

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The things most people want to know about are usually none of their business.

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Good behavior wins even an enemy.

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Those base men who speak of the secret faults of others destroy themselves like serpents that stray onto anthills.

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A bore is a person who opens his mouth and puts his feats in it.

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When in company, put not your hands to any part of the body, not usually discovered.

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I look only to the good qualities of men. Not being faultless myself, I won't presume to probe into the faults of others.

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Bill GatesBusinessman

Elon MuskBusinessman