Good medicine tastes bitter and is good for illness, but advice is hard to listen to. In the Western Han Dynasty, Sima Qian "recorded the history and stayed in Hou's home"

Listening is dark, listening is bright, Wei Zhi.

If an old dog barks, he gives advice. This sentence is based on the allusions that appeared in the Yuan Dynasty.

Modesty: full loss, modest benefit, you can look up the idiom dictionary to understand the source "Shangshu Dayu Mo": "full loss, modest benefit, when it is heaven."

Seeking truth from facts: "Being quick and eager to learn, not ashamed to ask questions, is called' Wen'. Everything written by Confucius in ancient and modern times is on it. This is to read more facts and listen less to empty words.