. The economic foundation is the activity that satisfies the desires of human beings. Hegel discusses the impact of the need for self-esteem on history. Freud discusses the impact of sexuality on social life.

Eight, scientific meta-ethics. We should regard the individualism, humanism and evolutionism as the ultimate standard of value, have a comprehensive understanding of the unity of opposites of them, and regard the meta-ethics as the basis of epistemology and ontology.