Confucius, the founder of the Confucian school, broke the monopoly of the ruling class on education for the first time, changing from "official learning" to "private teaching", so that traditional cultural education spread to the whole nation. In this way, Confucianism has a solid national psychological foundation, which is accepted by the whole society and gradually Confucianism the whole society. Confucianism adheres to the principle that "Tao cannot be three generations and law cannot be two kings" (Xunzi Wang Zhi).
The connotation of Confucianism is rich and complex, and the feudal imperial power gradually developed basic theories and ideas, namely, the unity of monarch, minister and father, and the distinction between Chinese and foreigners.
The essence of Confucianism includes pre-Qin Confucianism, Confucius' benevolence, righteousness and propriety, from the ritual and music system in the former Confucius era to Confucius' benevolence and propriety, Confucius' filial piety, the filial piety in the Analects of Confucius, Confucius' outlook on life, the formation background of Confucius' outlook on life, the characteristics and connotation of Confucius' outlook on life, the guiding significance of "cultivating oneself and keeping the family in harmony" and Confucius' theory on life problems. It's easy to stand and talk, Mencius' theory of good nature and Mencius' mission, Mencius' theory of benevolence and Xunzi's theory of evil nature and rule by courtesy, the evolution of Confucianism, Dong Zhongshu's Confucianism, Zhou's Neo-Confucianism, Zhang's Neo-Confucianism, Cheng's Neo-Confucianism and Zhu's Neo-Confucianism.