The so-called education should be the teaching and dissemination of social culture. Social culture, including art and science, should include three levels of content. The first level refers to high-level culture, which is abstract and intangible, such as social psychology, aesthetics and values. The second level refers to things or things' culture. From the first level, it is concrete. Although there is no concrete existence, we can really feel its structure and activities, such as political power and its institutions. The third level refers to the surface culture, which is both visible and tangible.

Simply speaking, it is spiritual culture, spiritual materialized culture and material culture. The purpose of education is to educate people, in fact, it is to let people accept all kinds of useful knowledge, so as to absorb and melt this knowledge and make it directly act on society, or to sublimate new knowledge on the basis of this knowledge, that is, to discover and invent.

The former is like a physical change, and the person who accepts it is like a container for things. A few things are still the same, but in a different place, some miscellaneous things are probably what we often call practical talents-skilled or skilled talents; The latter is similar to a chemical reaction, which produces different and other things. Such talents can master the first-class culture well and easily form their own unique ideas, concepts and research methods.