Why is Zhao Mengfu's calligraphy regarded as the "Zhao Ti" of regular script by later generations?

Zhao Mengfu's short stories mainly come from Two Kings' On Music and Yi, Luo Shen Fu, Yang's Interior of Huangting and Zhong You's Various Posts. Moreover, they are extremely well prepared, and they can integrate strict statutes with the self-satisfaction of mistress, which has been widely paid attention to by successive dynasties. Xian Yu commented: "Zi Ang's seal cutting, Li, Zheng, Xing and Dian Cao are the first of the time, and Xiao Zhuan is the first of Zi Ang's books." (Postscript: On Xiao Kai's Qin Dynasty) The representative works of Xiao Kai, such as Tao Te Ching, Luo Shen Fu and Han Ji 'an Biography, are rigorous in structure, accurate in brushwork and appropriate in density, and their charming and free-and-easy style can still be seen in their calm and vigorous brushwork. Although they are all long and small letters, they can be consistent from beginning to end, which shows their deep skill.