On the canon. Thesis is an early literary monograph in the history of literary criticism in China and an important document in the history of literary criticism in Han and Wei Dynasties. It discusses the attitude of literary criticism, the writer's personality and the style of his works, the difference between styles and the value of literature.

The "Wen" mentioned here is an article in a broad sense, including literary works, which involves several very important issues in literary criticism. Although a little rough, it occupies an important position in the history of literary criticism.

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Dian Lun Thesis is the earliest monograph of literary criticism in China, which comments on literature with a variety of styles and writers as the object. Starting from criticizing the bad habit of "scholars despise each other", Dianlun Essays requires people to comment on articles with the attitude of "judging people" and put forward different requirements for different styles.

At the same time, it puts forward the theory of "literary spirit" to measure the pros and cons of writers. Dian Lun Thesis also discusses the relationship between articles and politics, holding that articles are "a great cause of governing the country and an immortal event", and put articles in the position of paying equal attention to political achievements and contributions.

Dian Lun Thesis puts forward the theory that articles are immortal. There is a classic saying in Dian Lun Wen that is widely circulated: it is a national event and an immortal cause to build an article. Therefore, the ancient authors entrusted themselves to calligraphy, and their opinions were based on articles. He didn't fake the words of history, nor did he rely on the trend of flying, but his fame was later autobiographical. "This sentence clearly reflects the Confucian point of view, rather than the Taoist concept of birth.