Wu Meicun. Li Tu, a native of the Southern Song Dynasty, commented on ancient prose in "Essentials of Articles" and said, "Han Ruhai, Liu Ruquan, Ou Rulan and Su Ruchao." Wu Meicun, a poet in the late Ming Dynasty, disagreed. He said in the preface to Su Chang's official documents: "Li Yiqing commented on Wen Youyun:' Han Ruhai, Liu Ruquan, Ou Rulan, Su Ruchao." If it is not true, please say:' Han Ruchao, Ou Rulan, Liu Ruhe, Su Ruhai!' As for the sea, husband is the first view of the universe! It can be seen that the traditional "Su Han Hai Chao" originally refers to ancient prose, which evolved from "Su Chao in the Han Sea". Since Wu Meicun, people have realized that the metaphor of "Su Hai" is quite accurate, so the saying of "Su Ru Hai" has been widely circulated.