Prince Cheng, Yongxuan's "Three Essays on Calligraphy/Guan Zhi Guan Jie", you can see from his approach and use of pen that he has worked hard! Said with a Pen is one of the representative works among Prince Cheng's many works. He expressed his thoughts on Zhao Songxue's difficulty in using the pen through the ages, and also had some of his own opinions on the use of the pen. It can be seen that Cheng Ta, who is highly accomplished in calligraphy among the royal family, has a very deep understanding of the ancients.
