Su Shi is both a famous writer and a famous calligrapher. He once said in his poem: "Although I am not good at calligraphy, Xiao Shu is nothing like me;"

Su Shi thinks that calligraphy is a profound knowledge. He has studied it carefully and practiced it hard, and its degree is far better than others. But it is precisely because of this that he finds the depth of calligraphy even more difficult to touch. All we can do is know that she is profound, and even more, she can't reach her limit. Personally, I don't think the author has used the technique of self-modesty. What he wants to express in his whole poems is the profundity of calligraphy. If he is self-modest, he has no such intention. I hope it will help you understand.