Hua has been struggling in the national disaster all his life. He often says that he has experienced three disasters in his life. Poor from a small family, out of school, seriously ill, and disabled in both legs. During the second disaster in War of Resistance against Japanese Aggression, it was isolated from the world and lacked reference books. The third disaster was the "Cultural Revolution". His home was searched, his hand was lost, he was forbidden to go to the library, and his assistants and students were assigned to other places. In such a harsh environment, you can imagine how much effort you have to make and how much you have achieved. As early as 1940s, Hua was one of the leading mathematicians in the field of number theory. But he is not satisfied, he will not stop, he would rather start a new stove, leave number theory and learn algebra and complex analysis that he is not familiar with. How much perseverance and courage are needed! Hua is good at telling profound truth in vivid language. These words are concise, philosophical and unforgettable. As early as the SO era, he proposed that "genius lies in accumulation, and cleverness lies in diligence". Although Hua is brilliant, he never talks about his talent. Instead, he regards "diligence" and "accumulation", which are much more important than cleverness, as the key to success, and repeatedly educates young people to learn mathematics, so that they can always exercise themselves. In the mid-1950s, in response to the problem that some young people in the Institute of Mathematics were complacent after making some achievements, or kept writing papers at the same level, Hua put forward in time: "There must be speed and acceleration." The so-called "speed" means producing results, and the so-called "acceleration" means constantly improving the quality of results. Just after the "Cultural Revolution", some people, especially young people, were influenced by bad social atmosphere, and some departments were eager for success, frequently demanding grades, evaluating bonuses and other practices that were not in line with scientific laws, which led to the corruption of the style of study. Performance for shoddy, fame and fortune, wanton boasting. 1978, he earnestly put forward at the Chengdu conference in chinese mathematical society: "Early publication, late evaluation." Later, it was further put forward: "Efforts are in me, and evaluation is in people." In fact, this puts forward the objective law of scientific development and scientific work evaluation, that is, scientific work can gradually determine its true value only after historical test, which is an objective law that is independent of human subjective will. "China never hides its weaknesses. As long as he can learn, he would rather expose them. When he visited Britain at the age of seventy, he changed the idiom "Don't teach others an axe" to "teach others an axe" to encourage himself. In fact, the previous sentence means that people should hide their shortcomings and not expose them. Did Hua go to college to help others with their expertise, or did he turn lectures into formalism because he didn't specialize in others? Hua chose the former, that is, "if you wait, you will reach the door." "As early as the 1950s, Hua compared mathematics to playing chess in the preface of Introduction to Number Theory, and called on everyone to find a master, that is, to compete with great mathematicians. There is a rule in chess in China, that is, "A gentleman does not regret watching chess without saying a word". 198 1 year, in a speech in Huainan coal mine, Hua pointed out: "Watching chess is not a gentleman, help each other; I regret the gentleman and correct my shortcomings. "It means that when you see someone else's work has a problem, you must say it. On the other hand, when you find something wrong with yourself, you must correct it. These are "gentlemen" and "husbands". In view of the fact that some people retreat when they encounter difficulties and lack the spirit of sticking to the end, Hua wrote on a banner for Jintan Middle School: "People can't say that the Yellow River will not die, but I say that the Yellow River will be stronger. "When people are old, their energy will decline. This is a natural law. Hua knows that time waits for no man. 1979 when he was in England, he pointed out: "The village is old and easy to empty, and people are old and easy to disperse. The scientific approach is to abstain from empty and scattered. I am willing to stick to it all my life. " This can also be said to be his "determination book" to fight against his aging with the greatest determination, so as to spur himself. The patient with the second myocardial infarction in Hualuosuo still insisted on working in the hospital. He pointed out: "My philosophy is not to prolong life as much as possible, but to do more work during the day. "If you are sick, you should listen to the doctor and have a good rest. But his indomitable spirit is still valuable. In a word, all of Hua's expositions are permeated with a general spirit, that is, constant struggle and continuous progress.