Those who know others are wise, those who know themselves are clear, those who win others are strong, and those who win themselves are strong.

He who knows others is wise, and he who knows himself is wise.

Be knowledgeable, interrogate, think carefully, distinguish clearly and persist.

The most regrettable thing in life is to give up what you shouldn't give up easily and stick to what you shouldn't stick to.

Nourishing the heart is not good at lust

I save myself three times a day.