Pinyin: yán yú lǜ ǔ

Explanation: law: constraint. Strictly restrain yourself.

Source: Song Chenliang, "Xie Zengcha Yuan Jun": "Be strict with yourself and see what you see; Those who love the people are justified. "

Idiom: Be lenient with others.

Pinyin: kuān yǐ dài rén

Explanation: width: tolerance. Treat others with a generous attitude.

Source: Ming Luo Guan Zhong's The Romance of the Three Kingdoms: "I always knew that Liu Bei was tolerant, gentle and tenacious, and invincible."