in the 19th year of Daoguang (1839), Lin Zexu was appointed as an imperial envoy, went to Guangdong to ban smoking, restrained the Guangdong navy and investigated Haikou. This is not only the heyday of his politics, but also the maturity of his thoughts. On September 3 this year, he left the motto "Ten is useless": "If you have bad intentions, Feng Shui is useless. Parents are unfilial, and it is useless to serve God. It's no use making friends when brothers are at odds. It's no use reading if you don't behave properly. It's no use being clever and perverse. It's no use being arrogant and knowledgeable. It is not good to be rich, but it is useless to accumulate. It's no use giving to rob people of their money. It's no use taking medicine at all costs. Prostitution is arrogant and extravagant, and career is useless. " This motto of "ten useless" is not only the criterion of Lin Zexu's life, but also the concentrated embodiment of Lin Zexu's moral ideal. Lin Zexu inherited the wisdom of spiritual virtue in China's traditional moral thought, and got inspiration from nature's "actions" and "things". He believed that people should have the spirit of "striving for self-improvement", because the "weather" that nature showed to human beings was a kind of "striving for self-improvement" quality. The so-called "Heaven" is a vigorous and powerful cultural achievement that runs without embellishment. Nature tells people that only by accumulating good virtues can we be carefree. "The terrain is Kun, and the gentleman carries virtue with thick things." As long as people can't afford to desire, clear their hearts and lack desires, their goodness will not be lost, and self-cultivation of their virtues will surely lead to positive results; If you are "ill-intentioned", blinded by profit, and contrary to heaven, the result will inevitably be self-restraint, harming benevolence for personal gain, and "doing more injustice will kill you." Lin Zexu believes that "it is useless to study if you misbehave. It's no use being clever and perverse. It is useless to be arrogant and knowledgeable. " The premise of moral learning is expounded. Morality is the foundation of learning. Because Lin Zexu was born in poverty, his long-term family hardship experience, his contact with the life of the lower class and his good education and influence have cultivated his noble sentiments such as being upright, paying attention to national integrity and worshiping heroes. Therefore, during his political career, Lin Zexu, under the guidance of the idea of "applying what he has learned from the world", comforted the people from above, and "learned from mechanics" in an attempt to revitalize the country. He actively took some measures to promote the advantages and eliminate the disadvantages, facilitate the people and benefit the people, and carried out some reforms within his jurisdiction, which showed his true nature as a reformist and doer of the landlord class. He prides himself on being clean and fair, and has won widespread praise from local people. All these are inseparable from Lin Zexu's moral cultivation of paying attention to introspection. The "four dimensions" of etiquette, righteousness, honesty and shame in China's traditional moral concept are four virtues related to the long-term stability of the country. Lin Zexu warned people in the motto of "ten useless" that "it is not good to be rich, but it is useless to accumulate". "It is useless to rob people of their wealth and give alms". "lewd and extravagant, career is useless." "Parents are unfilial and it is useless to serve God". It's no use making friends when brothers are at odds. These are all relational virtues. With this kind of relationship virtue, society will have ethics, people will be coordinated, society will be harmonious and people's spiritual realm will be noble. The moral concept revealed by Lin Zexu in his motto "Ten Useless" is actually a basic moral standard of China's ethics. Lin Zexu, as the first national hero in modern history, had a rough life. Although he was dismissed from his post and exiled and sent to the frontier, he was able to be embarrassed and humiliated, and his original intention remained unchanged. "Why should I avoid it because of misfortune and fortune?" He became a good minister in governing the country and rejuvenating the country because he abided by China's traditional virtue and wisdom.