To understand the principles of being and becoming is the core mission of Wang Yangming. Yangming’s principles is the basis of being and becoming and it refers to the nature and the root of everything and it is the existence of super experience. It is absolute and ultimate and is different from Zhu Xi’s theory in that there is only one principle-namely justice. It penetrates the nature and human society and is common and applicable to everything in the universe. From the perspective of human practice，this basic principle of justice is that human practices should follow the truth of justice. Everything on morality should stand by this principle. From the perspective of universe’s existence，it is not only the principle of survival of the organism in the universe，but also the principle of survival of everything in the universe. The principle that can link the nature and human society is benevolence. In Wang Yangming’s opinion，the nature should also follow the human society’s principle-Be benevolent，then humanity would become the master of the world. Thus，mankind has mastered the right to speak after a long time of struggle.