Niu Shumei's Family Instructions

Prosperous people are often worthless, and those in adversity are often frustrated; If people can work hard in prosperity and cheer up in adversity, they are not thick, but they are born in Ercheng. In addition, people who are blessed must have ambition. -Excerpted from "Passing through my hometown Tongwei", this sentence is Niu Shumei's calligraphy hall, hidden in Niu Zhimin's ancestral home.