Li Daniu, the son of a pig-killer who was covered in tendons and could not read a single word, in order to avoid military service, his father sold iron to "buy" him a place in the imperial examination; but when the literati in the city were waiting to see his joke, he not only took out five thousand years of Chinese poetry and songs, but also accidentally triggered the "Vision of Confucianism and Taoism", forcefully bearing the name of a rough man, and rubbing all the noble literati in the world to the ground!