The original text of "Mianli Hidden Needles" is called "Mianli Tie". He praised the Song Dynasty writer Su Shi: his calligraphy is good.
The famous Song Dynasty writer Su Shi (Dongpo) wrote well. His calligraphy seems to be soft on the outside, but the backbone is very strong. He himself said: "The characters I write are like Mianli iron." " said: Gong Ziyun: "The rest of the book is like a cotton lining with iron." Looking at this book, it is soft on the outside and hard on the inside. It is really called iron on the inside.
It is a metaphor for soft on the outside and hard on the inside. There is firmness in the softness. It was called "Mianli tie" as a compliment.
But later, "Mianli tie" was changed to "Mianli needle", which is not a compliment. For example, in the Yuan Dynasty song "Qujiang Pond" 》 (Worked by Shi Junbao): "The knife in the smile cuts the skin and the flesh, and the needle in the cotton lining picks out the marrow and picks out the tendons."
"The needle in the cotton lining" is also said to be "the needle hidden in the cotton lining", which describes the appearance of being gentle on the surface, but the heart inside A sharp and insidious person. The meaning is similar to the "Laughing Knife".