As for praise, as mentioned earlier, the aesthetic value of his calligraphy is undeniable, but due to political, ideological, ethical and moral reasons, it is inevitable that there are too many useful words. As for its criticism, it can be said that there are reasons. First of all, there are some comments about "impurity", "stagnation" and "clumsiness" in some stone tablets in Yan Zhenqing.
Secondly, due to the differences in people's innate quality, living environment, cultural upbringing and ideological sentiment, people's aesthetic standards are not the same, or even completely opposite. And no great artist can write every stippling perfectly. It is not surprising that some of his books are "rude and weird". We should pay attention to this when studying Yan Shu. However, Mi Fei's comments on "archaic and inappropriate" and "the father of ugliness and ugliness" are biased. The phenomenon of "collecting the ancient and forming its own family" (Mifei language) does exist, but it is difficult to become a master of open school art.