What do future generations think of Ni Zan's calligraphy?

Later generations spoke highly of Ni Zan's calligraphy. Xu Wei's "Xu Wenchang Legacy" said: "Your calligraphy was handed down from Li to Li. I was reborn in Zhong You's "Recommended Season Straight Table". The ancient rhyme is charming and dense. " He also said, "The book of Yunlin was written by calligraphers, while the Book of Imperial Palace Huang Ting Jing Juan was all the legacy of Yang and Xu. It is conceivable that the demeanor of the Six Dynasties was beyond that of the Song and Yuan Dynasties. Yuan Zhen is really a first-class calligrapher. He doesn't eat human fireworks and is a fairy. "