Praising the high level of calligraphy or articles can be described by idioms. For example, Guo Moruo wrote couplets for Pu Songling's former residence: "Writing ghosts and writing demons is superior, and stabbing greed and stabbing abuse."
A penetrating point comes from Zhang Huai _ "Shuduan Wang Xizhi" in Tang Dynasty. "When the Jin Emperor offered sacrifices to the northern suburbs, he wished the edition even better, and the workers cut it and got into the wood." Li Tou's back is from Zhao Yi's "Ou Bei Shi Hua" in Qing Dynasty: "(Lu You's poems) are intended to be written first; Force through the paper back. " Smooth brushwork, exquisite brushwork, compromise, elegance and beauty, vigorous and boundless, and clear strokes