The basic explanation of the proverb zhēn yán is 1. [exhortation]: words of exhortation 2. Proverbs: There is a book in the Old Testament that explains the words of exhortation in detail. The Book of Pan Geng: "When looking at the people, think more about proverbs." Zeng Yungan is reading: "Proverbs are also words of advice." Zeng Guofan's Proverbs Academy in the Qing Dynasty: "At that time, there were many talents in Hubei, and the assistant minister said: The method of cultivating talents in the proverbs of ancestors is like this, and I can continue to describe it. Wang Xiyan's Old House Part III: Friendship is the most precious thing in life. I recite the motto of a great Roman philosopher. "