This sentence comes from Luoyang Order, which refers to the Luoyang Order of Dong Xuanshi, Guangwu Emperor of the Eastern Han Dynasty. Dong Xuan was born in Chenliu County (now south of Qixian County, Henan Province) in the Eastern Han Dynasty. He is knowledgeable and upright, which is a famous "injunction" in the early years of the Eastern Han Dynasty. He is an honest official, who enforces the law impartially and is not afraid of power. He not only won the trust of Emperor Guangwu, but also was praised by people at that time. His deeds were written into the later Han Dynasty book "Biography of Cool Officials", which has been passed down to this day. When Dong Xuan was ordered by Luoyang, Princess Populus euphratica killed her head and hid in her main house. After the princess went out, she used him as a mount. Dong Xuan waited on the road, stopped the horse, drew a picture on the ground with a knife, and then talked about the owner's mistake. He scolded the slaves and was forced out of the car to kill them because of the situation. The main complaint was submitted to the emperor, who was angry and summoned Xuan to kill him. Xuan said, "Your Majesty is virtuous, and how can you rule the world by killing a good man with slaves?" Even if he hit the column with his head, the emperor ordered Xiao Huangmen to stop it and let him kowtow and thank the Lord. Declare disobedience. As a last resort, he declared that he supported the ground with his hands and refused to bow his head in the end. Because of a strong order. ..... buried as a doctor. See Biography of Corrupt Officials in the Later Han Dynasty for details.