Ruan Ji is the representative of Zhengshi Zhiyin, among which the 82 poems of "Yong Huai" are the most famous. Ruan Ji used different writing techniques such as metaphor, symbolism, and sustenance to use the past to satirize the present and express his feelings, forming a poetic style of "sadness, anger, sorrow, obscurity and twists". In addition to poetry, Ruan Ji is also good at prose and poetry. There are nine essays in existence today, the longest and most representative of which is "The Biography of Mr. Adult". There are also six pieces of poems preserved, including "Qingsi Fu" and "Shouyangshan Fu" that describe the annals, and "Dove Fu" and "Monkey Fu" that describe things. Examine Sui Shu. "Jing Ji Zhi" records the collection of Ruan Ji in thirteen volumes, but unfortunately it has been lost. In the Ming Dynasty, Zhang Pu compiled "The Collection of Ruan Infantry" and included the "Collection of One Hundred and Three Families of the Han, Wei and Six Dynasties". In recent times, Huang Jie has "Notes on the Poems of Ruan Bingling's Ode to Huai". Ruan Ji had a political ambition to help the world. He once climbed to Guangwu City to observe the ancient battlefields of Chu and Han, and lamented that "there are no heroes in the world to make Zhuzi famous!" At that time, Emperor Ming Cao Rui died, and Cao Shuang and Sima Yi assisted Cao Fang. The two fought openly and secretly. The political situation is very dangerous. Cao Shuang once summoned Ruan Ji to join the army, but he resigned and returned home citing illness. In the tenth year of Zhengshi (249), Cao Shuang was killed by Sima Yi, leaving the Sima family alone in the government. The Sima clan killed dissidents, and many people were implicated. Ruan Ji was originally politically inclined to the royal family of Cao Wei and was dissatisfied with the Sima Group, but at the same time he felt that things in the world were no longer feasible, so he adopted an attitude of staying aloof and protecting himself, either studying behind closed doors, climbing mountains and rivers, or having a good time Too drunk to wake up, or silent. However, in some cases, Ruan Ji had to deal with it due to Sima's power. He accepted the official position granted by the Sima family, and served as the middle man of the Sima family and his son, as well as the regular attendant of the scattered cavalry and the captain of the infantry. Therefore, later generations called him "Ruan Infantry". He was also forced to write "Encouragement Articles" for Sima Zhao, who proclaimed himself Duke of Jin, and Bei Jiuxi. Therefore, the Sima family adopted a tolerant attitude towards him, and did not pursue his various behaviors that were wild and unruly and violated etiquette and law, and finally he was able to live out his life.