The main pedagogy thought: the theory of natural education, the core of which is to return to nature. He argued that political education must belong to nature from various influences on children. He said that everyone is trained by natural education, physical education and artificial education. The natural educational manpower is uncontrollable, so education can only make the latter two tend to be consistent with natural education. Therefore, education belongs to nature, that is, good and effective education can be based on natural education.

The training goal of nature education is a natural person, which is different from the concept of citizens or nationals. A natural person is an independent person, equal, free, self-reliant, noble in morality, with extremely high ability and intelligence. The purpose of education is to cultivate natural persons; People who can be independent, equal and free must first treat their children correctly, not treat them as little gentlemen or adults, and then give them full freedom. Letting children conform to nature is negative education.

In the implementation of natural education, he is divided into: infancy (0 to 2 years old); Physical health care period, childhood (2 to12); Sensory education period (rational sleep period), adolescence (12 to15); Intellectual education, moral education and labor education, adolescence (15 to adulthood); During the storm and fanaticism, religious education and moral education