Introduction to Shengyujie Stone Square: The front section of the middle road is the office area of Huai'an Prefecture, with eight-character gate, Yimen, main hall, six departments, etc. built there. There is a majestic and tall "Shengyujie Stone Square" built inside the Yimen. On the south side, there are three characters "Gong Sheng Ming" written by Xunzi, a famous thinker in the Spring and Autumn Period, which means "Only with fairness and justice can we clearly understand things." On the north side is the inscription "Emperor of the Later Shu". The twelve characters written by Meng Chang, "Your salary and salary, the people anoint the people; the people are easy to abuse, but the heaven is difficult to bully", which warns officials to always remember that their income comes from the blood and sweat of the people, and the people are easy to bully. , but nothing you do can escape the wisdom of God.