Context for poem:
Found at http://www.immanuel.net/cincc/chinese_worship/chinese_worship.asp?WorshipId=1252&Action=DETAIL:
In an old section of the the town, Tongcheng, Anhui, there is a monument with two characters, “Comity” inscribed on it. Below the momument, it is a six-foot wide alley with granite walls on both sides paved with stone tiles. There is a tree that gives shade and is full of the scent of flowers, it’s a beautiful ancient place to visit. At the entrance, is a stone tablet inscribed “Six-foot Lane” embedded in the wall. According to legend, during the Qing Dynasty of Emperor Kangxi, the head of the Educational Department, Zhang Ying lived there. Once his family had a dispute with a neighbor over a fence that incroached three-foot of their land. The family wrote a letter and delievered it to Zhang Ying at the capital to ask him to use his power to settle the case. Minister Zhang wrote a poem: “A letter from thousand miles, just for a wall that yields three-foot of no harm. The Great Wall still stands, but where is Qin Shi Huang?” The Zhang’s got the letter and made peace with their neighbor.