Private academic activities among the people have resumed in the Qin and Han Dynasties. When Chu and Han contended, Liu Bang mobilized troops to surround Lu State, saying that "Confucianism in Lu State still stresses recitation, learning etiquette and music, and the sound of string songs is absolutely unique". The Han Dynasty learned the lesson of Qin's death and realized that private schools could not be destroyed or banned. As long as they are good at guiding, folk academic activities can also play a role in maintaining social order, promoting education and cultivating talents. Due to the limited number of places in imperial academy, it is difficult to popularize local official schools for a while, so it is the best way for people to teach by themselves to supplement the shortage of official schools. Therefore, the rulers of the Han dynasty adopted an open policy towards private schools, allowing private students to give lectures, and generally did not restrict the teaching content. A hundred schools of thought contend and all kinds of knowledge and skills can be taught. After the exclusive respect for Confucianism, the government encourages folk Confucian classics education activities, and all successful scholars may be hired by selecting scholars. When Yang Ren was a county magistrate in Shifang (now Sichuan), he encouraged his children to study. People who are proficient in classics were hired by the county government or recommended to the imperial court, so many people started their own voluntary studies in China. Scholars who are famous in academic research and teaching activities in private schools can be appointed as professors in Imperial College London or employed as local government teachers by local authorities. Some officials with academic attainments, such as doctors, were born out of wedlock. The exchange between official education and folk education was the embodiment of the prosperity of Confucian classics education in Han Dynasty.