This is a special form in which the bourgeoisie not only demands the transformation of feudal production relations, but also compromises with the metaphysics of feudal hierarchy. It played an important role in modern Chinese philosophy and had a direct influence on later Yan Fu, Kang Youwei, Tan Sitong and Sun Yat-sen. Zheng Guanying was not a defender but a reformer. Zheng Guanying advocated that the foundation of national prosperity and strength was that China should imitate the parliamentary system of Britain and Germany and implement a constitutional monarchy. All other reforms would be nothing more than an end. Zheng Guanying's philosophical views should not be confused with his political views. In terms of the relationship between poetry and society, Zheng Guanying advocates "directly recording current events" and "implying advice"; in terms of the relationship between poetry and emotions, he advocates "reciting temperament" and "expressing one's past freely"; in terms of the relationship between poetry and form, he advocates "informal style" ", "do not follow the example of the ancients"; in terms of the relationship between poetry and language, he advocates "strengthening the word" and "writing is particularly precious and superficial". On the road to colloquialism and vernacularization of modern poetry, Zheng Guanying has indeed taken a big step forward than the famous poet Huang Zunxian. The content of Zheng Guanying's poems is most famous for his industrial poems, which reflect the purpose, content, measures and guarantees of revitalizing industry. The style of Zheng Guanying's poetry is both impassioned and heroic, as well as calm, gentle, gentle and simple. His poems have the characteristics of "not setting up cliffs, not embellishment, but following the situation and expressing emotions." Although his poems mainly express his feelings directly, there are also vivid and poetic descriptions. His poems can be said to be at the forefront of contemporary poets in terms of exploration of themes, sensitivity of touch, and depth of thought. His book "Warnings in the Prosperous Age" runs through the theme of "saving the country with prosperity and strength", and puts forward practical plans for reforms in politics, economy, military, diplomacy, culture and other aspects, which gave people who were depressed and frustrated after the defeat of the Sino-Japanese War of 1894-1895. In the confused late Qing Dynasty, a good medicine was prescribed to save the world. Zheng Guanying strongly advocated the rapid implementation of constitutional monarchy. Regarding the Qing government's stubborn and hard-line attitude on this issue, as well as the results of the implementation of constitutional monarchy in Britain and Japan, Zheng Guanying said angrily, "You still say that the parliament is not feasible? But you still say that China does not urgently do it. ? Hey! " and advocated giving the parliament the power to "take over the government's program". In order to implement the constitutional monarchy smoothly, Zheng Guanying also proposed a series of supporting internal affairs reforms, advocating the widespread publication of newspapers so that the lower levels could reach the upper levels, and play a role in public opinion supervision over officials, large and small, so as to encourage good and punish evil, and promote benefits and eliminate disadvantages. It advocates reforming the official selection system. Officials should be elected by the people, and redundant officials should be eliminated and those who are old should be eliminated. "Hire famous teachers and open art schools widely." He believed that in order to strengthen the country, we must attach great importance to Western learning, develop education, and focus on the cultivation of new talents who master Western astronomy, geography, and humanities. He said that according to the educational regulations of various countries in ancient and modern times, both at home and abroad, it will have the effect of becoming rich and powerful. The number of courtyards increases, books and materials are prepared day by day, manufacturing becomes more and more extensive, and the country becomes stronger and stronger." It advocates vigorously translating Western books, reforming the imperial examination, adding new subjects such as Gezhi, electronics, and medicine, and recruiting talents who are proficient in Western learning. In terms of economics, Zheng Guanying put forward the famous "business war" theory. He believed that the purpose of Western powers' invasion of China was to turn China into their "place to draw materials and make profits," so he used "military warfare" and "commercial warfare" to deal with China, and commercial warfare was more sophisticated than military warfare. Being secretive, the harm is greater. As the saying goes, "the annexation of soldiers can easily cause harm to others, but the annexation of merchants can destroy the country invisible." He advocated that "Westerners use commerce as a means of warfare. Since they came through commerce, we should also go out through commerce." Since "my business will not flourish, his greed will also continue." Only by building a country based on commerce, and by supporting industry with commerce, "if you want to control Westerners and strengthen yourself, it is better to revitalize commerce."

He declared in the book: "If you want to resist foreigners, you must strengthen yourself. If you want to strengthen yourself, you must first get rich; if you want to boost industry and commerce, you must first focus on schools, quickly establish a constitution, respect morality, and improve politics." Therefore, He advocated that “the establishment of railways, steamships, mining, planting, and manufacturing should all be done by the private sector without any prohibitions.” At the same time, he pointed out that merely learning Western technology without carrying out political reforms was “removing the body while pursuing the other.” "Using" will definitely fail. A parliament must be established immediately in China to implement a constitutional monarchy. After the publication of the book, it received great attention from the intellectual circles and effectively promoted the widespread dissemination of the reform trend.