1. It is difficult to use a pen through the ages, and the knotting of words changes with time. Zhao Mengfu of the Yuan Dynasty 2. What is valuable in the world must be difficult: it is difficult for real calligraphy to be fluttering, and it is difficult for cursive calligraphy to be serious; it is difficult for large characters to be dense and seamless, and for small characters it is difficult to be broad and generous. Su Dongpo of the Song Dynasty 3. Within a stroke, the peaks and ridges rise and fall; One point becomes the rule of one word, and one word is the basis of the whole article. Tang Sun Guo Ting 4. If it is straight and similar, shaped like an operator, with the top and bottom straight, and the front and back even, then it is not a book, but it has some stippling. King Xizhi of the Jin Dynasty (inscribed on Mrs. Wei's pen array diagram) 5. Those who are good at penmanship have many bones; those who are not good at penmanship have more flesh; those with more bones and less flesh are called sinewers; those with more flesh and less bones are called ink pigs; those with more strength and tendons are saints, but those with more strength and tendons are holy and weak. People without tendons are sick. Mrs. Jin Wei (Picture of the Brush Formation) 6. When the brush is straight, the edge is hidden, when the brush is flat, the edge comes out. They fall together, one is obscured and the other is bright, and the magic comes out. If you always want to use your brush strokes in the painting, then there will be no disease on either side. Therefore, each dot and every stroke has three turns, each wave and every stroke has three folds, and each stroke has several patterns. Jiang Kui of the Song Dynasty (continued book score) 7. The beauty of calligraphy is first, followed by form and quality. Only those who have both can be introduced to the ancients. In other words, it is not easy to get more.

Wang Sengqian of the Southern Qi Dynasty (praise for penmanship)