Before the unification of the six countries, the State of Qin had a tradition of valuing practical benefits and neglecting rites and music. As early as the beginning of the 6th century, those who assisted in "strengthening Jin in the east and cutting foreigners in the west" regarded the teaching of poetry, calligraphy, etiquette and music as the source of disaster. In the mid-Warring States period, Shang Yang reformed the political system, rewarded the agricultural war, advocated the study of the name of punishment, and denounced the theory of "taking poetry as teaching" and "other countries must cut". And "people are not expensive to learn", but "national security is not the key." On the eve of Qin's destruction of the Six Kingdoms, Han Fei wrote more than 100,000 words, including five mistakes, loneliness and anger, and problems. He used culture, education, courtesy and righteousness, and rejected private studies, which made scholars and children split their minds, which was not conducive to the unification of government decrees and won the appreciation of Ying Zheng, the king of Qin.