the first requirement in life is light and truth. -Li Dazhao The value of life depends on his career, not his years. -Cai Yuanpei's purpose in life is to fulfill his obligations. -Cai Yuanpei If a person only thinks of himself, it is shameful; If a person lives only for himself, it is better to die. -Peng Dehuai, a person with a strong personal "material desire", must be a person who lacks ideals, has low taste and has an empty spiritual life; He is also a person with a very sad life. -Tao Zhu The saddest thing in a person is the death of conscience. —— Guo Kui must not get carried away when he is proud, and he must not lose heart when he is frustrated. -Sun Shijie Only those who can really love themselves can love others. -Wu Mi If a person idles away his life just for his small survival, then even if he lives to be a hundred years old, what is the value and significance?