Write a paragraph on the back of a penetrating paper.

Master Huang Binhong said: Painting is all about hard work, which can hold down the paper and then penetrate the back of the paper. However, the force should not be too rigid, and if it is too rigid, it will be hard. ..... Rigid Chinese is a good painting. The method of using a pen is all in the book formula, and there is a phrase "twists and turns", and the most is then. Europeans say that the curve is beautiful, but also for the solution. The courtyard is accustomed to vertical and horizontal habits, but it is too rigid. Zhejiang people painted in the Ming Dynasty, but Xiushui Xiang Dexin and Kong Zhang's uncles were the best, along with Zou Yibai and Yun Daosheng.