Give you an idea: the value of life is divided into subject identity, object identity and subject-object identity. Subject identity refers to an individual's complete self-identity that is not affected by external factors. For example, in ancient China, Yang Zhu lived happily from lust, and some artists simply pursued art, and so on. Identification with the object refers to identification with the society. Subject-object identification refers to the joint cognition of subject and object to values. From the identification of subject and object, we can extend the mission of human beings, people with lofty ideals and scholars. For example, the German philosopher Fichte believes that the mission of scholars is to serve the society with scientific knowledge and care about the cause of human progress, so that human beings will not stop or go backwards. Therefore, scholars should have a passion to accomplish their mission without fear of any difficulties and hardships.