The essence of value is the discovery, creation and innovation of human self-development, including any material form. Value has concrete manifestations in many fields, such as social value, personal value, economic value and legal value. The existence of these values is the essential existence of category regularity in the development of people in different fields.
Value includes the dual development of human consciousness and life, and the unified development of human and external nature. All the development of the world created by human self is valuable, and the core essence of value is free man. A man who creates his own existence is a free man. Man himself is the fundamental object of value, man is the ontology of value, man's behavior is the source of value, and man's development is the result of value. Human development is the unified development of human internal contradictions and external contradictions, the all-round development of human consciousness and life, and the all-round development of human and nature. That is, the unity of man's internal self-creation and external creation with nature, and this kind of free creation is still a valuable act, then the overall value is the realization of freedom.