One of the meanings of life has been passed down since ancient times. Scattered in Shangshu? What is the emperor saying? In the coming year, there will always be eternity, not for the people, but for them. , The Book of Songs. Daya. King of literature? Although Zhou is an old state, his life is reformed? Generally, it is the connection between heaven and life. The ancients believed in heaven and also believed in fate. Later, the meaning of life gradually differentiated and evolved into the theory of three lives. According to Sansheng, the old meaning is roughly the same, that is, righteous life, secondary life and being killed, but is it? Is it life? Or call? Big life, orderly life? That's all. Xunzi? Life? Compared with Mencius, he realized the unpredictability and contingency of fate. Mencius attached importance to self-cultivation, while Xunzi attached importance to external conditions, which became the cornerstone of the evolution of Sansheng theory.