"Breaking the four old habits" refers to breaking old ideas, old cultures, old customs and old habits. On June 1966 and 1 Sunday, the editorial "Sweep the Ghosts" of the People's Daily put forward the slogan "Get rid of all the old ideas, cultures, customs and habits that have poisoned the people for thousands of years"; Later, Article 16 of the Cultural Revolution clearly stipulated that the idea of "breaking the four old things" and establishing the four old things was the idea of all the representatives of feudalism and bourgeoisie, including Confucius, Laozi and Zhuangzi, Dong Zhongshu, Han Yu, Zhu, Wang Yangming, Zeng Guofan and Hu Shi, referring to their works and other works under their influence. Old culture refers to the spiritual phenomena such as etiquette system, literature and art, educational thought and practice in the old times, which have both written and unwritten remains. It contains more content than the old ideas. Old customs refer to the fashions (including food, clothing, housing, transportation, festivals, weddings, funerals and entertainment), etiquette and habits handed down from generation to generation in people's daily life in history, that is, the secularization of old culture. Belongs to a subculture. Old habits, that is, behavior patterns, tendencies and ethos formed in long-term life in history and reality, also include psychological stereotypes derived from old ideas, old cultures and old habits. Compared with the first three, it is more in the outer layer of the appearance.