Why is it said that literature is the same as poetry, writing, calligraphy and painting are all skills?

Wen Tong (1018-1079), whose courtesy name is Yuke, and whose nickname is Xiaoxiao Jushi, was born in Zitong, Zizhou (now Zitong, Sichuan). He had a square mouth and beautiful eyebrows, and a noble character. Sima Guang and Su Shi both thought highly of him. When Wen Yanbo was in Chengdu, he also wrote to him: "Your bosom is as bright as the white clouds on a sunny day and the bright moon on an autumn night." ”

He is proficient in poetry, literature, calligraphy and painting. In his poems, he often combines his descriptions of natural scenery with paintings. For example, in "A Scenery on a Lake in the Late Snow", the two sentences "Sitting alone in the water pavilion, no one is around, and the forest is full of hanging birds" directly compares the landscape to Famous paintings, such as "The peaks and mountains are like Li Cheng, the valleys and valleys are like Fan Kuan" in "Chang Ju" use the painting styles of the two painters Li Cheng and Fan Kuan to compare the landscape. Mr. Qian Zhongshu believes that starting from Wen Tong, "this has become a common technique in Chinese landscape poetry" ("Selected Poems of the Song Dynasty"). He is good at writing in seal script, Li script, Xing script, Cao script and Fei Bai script, and has certain attainments in calligraphy. He was also one of the earliest literati to compose literati paintings, and was good at painting ink and bamboo. At first he was just amusing himself, but as he gradually became famous, many people came to visit him with jiān (a thin silk fabric often used for writing in ancient times) to ask for paintings. Wen Tong hated them and threw all the silk to the ground. In the first year of Yuanfeng (1078), he was appointed to know Huzhou. In the second year, he rested on the way to take office and died sitting upright. Later generations called Wen Tong "Wen Huzhou" and called his ink bamboo painting style "Huzhou Bamboo School". ".