Let a foot house allusion?

During the reign of Kangxi in Qing Dynasty, there was a college student named Zhang Ying. One day, Zhang Ying received a letter from home, saying that her family had an argument with her neighbor in order to compete for a foot-wide homestead, and asked him to use his power to smooth the relationship and win the lawsuit. After reading the letter, Zhang Ying smiled indifferently and wrote a letter with a pen, with a poem: A thousand miles of books are just a wall, so why not let him be a foot? The Great Wall of Wan Li is still there today, but I haven't seen Qin Shihuang. After receiving the letter, the family gave up a foot of homestead. Neighbors saw it and took the initiative to give way, resulting in a two-foot lane. The story of turning an enemy into a friend has been passed down to this day.