1, the development of human society is determined by material conditions, and social history is a reflection of the process of material production. The development of human society can only be carried out on the basis of material conditions, and it cannot be separated from material conditions.

2. Social existence determines social consciousness, which is relatively independent and has a dynamic reaction to social existence.

3. The basic social contradiction refers to the contradiction that plays an overall braking role among the numerous contradictions of social organisms, that is, the contradiction between productivity and production relations, and the contradiction between economic base and superstructure.