First, the density is good.
Calligraphy and painting can be done in sparse places, but not in dense places. They are often considered to be black and white, and curiosity comes out. -Deng's "Guang Yi Zhou Shuangyi"
Second, the unity of change.
As the old saying goes, "the body of a book must be in its shape" takes the form of "sitting, walking, flying, moving, walking, coming, lying down, getting up, worrying and enjoying", but if you don't take it well, it will be uneven, and if you take it in the cycle, it will be great. -Liu Xizai's Art Outline
Third, circular health care.
Writing a book is expensive. If the words follow up and down, they will be perfect if they are stacked together. In other words, people, lines, dozens of lines. Always spiritually United, and the gods will not leave. -Zhu Hezhen's New Interpretation of Lin Chi
Four, phase pipe hoop
Whoever writes a word, the first word, can control its momentum to the end, then this word is the leader of the whole article. If a word has one or two spaces. Is that you can't control a line. There are several discrepancies in a picture. Even if you can't manage one picture, this management method is also three. -Ge Shouzhi's Introduction to Han Xi's Calligraphy
Five, there are primary and secondary points.
In short, although all desires are good, there must be one: painting, hooking, hooking, wearing and brushing. The beauty of jade makes people play and can't become famous; In an article, although all desires are beautiful, there must be one or two sentences at the peak. Such as fish and phoenix. Let people play with it, but it's not famous. -Jie Jin's Essays on Spring Rain
Six, seamless
One word and eight directions circulate as internal gas, and one chapter manages external gas. Internal qi says that strokes are dense, light and heavy, and fat and thin. If the plaque is scattered, why are you angry? A foreign language article is full of reality, density, control, connection, inheritance, intricacy and reflection. The first word cannot be moved to the second word; The second line cannot be moved to the first line. -He Jiang's Essays on Learning Books