Xiang Mu: People are very good at writing. There are thousands of shapes and forms, but they are just called "neutral", "fat" and "thin". If the length of the book should be in harmony, the weight should be balanced, the yin and yang should be appropriate, the hardness and softness complement each other, and the person who talks about the appearance of the world will be neither fat nor thin. Neither long nor short is beautiful.

Mrs. Wei: The stippling is like a stone falling from a peak, and the bump is like a collapse; the horizontal painting is like a cloud formation thousands of miles away, but it is faint and tangible; the vertical painting is like a long-lived withered vine; the left painting is like a rhinoceros in the land. ; The strokes are like crashing waves and thunder running; the oblique hooks are like the hair of a hundred Jun crossbows; the horizontal folds are like the tendon joints of a powerful crossbow; each word is a character, and each resembles its shape. This is a wonderful creation, and the calligraphy is complete.

The structure of cursive script is more expensive and more accurate. For example, the top is too high and the bottom is too low, the bottom is too long and too short, and both sides are biased and give way to each other. clear. Liu Xizai's "Art Introduction"

Qi Baishi Painting lies between similarity and dissimilarity. It seems too vulgar, but not deceptive. The beauty is between similarity and dissimilarity.