He entered the official position from a humble family and served as an assistant in the government for three dynasties. He protected the common people of the Song Dynasty with his green shirt. Before his death, he left three words: as an official, do not be greedy for money and do not betray the people; as a minister, do not flatter the powerful and powerful, and do not forget the country; as a human being, do not change your original intention and do not betray your life.