(1) There is a famous saying about Cao Zhang in Cui Yuan's cursive script of the Han Dynasty: "Look at its statue and pitch with the instrument; Square is not square, round is not square. Restrain the left and promote the right, and look forward to it. Birds and beasts are eager to fly; The sly rabbit is violent and will not rush. " This is a vivid description of Cao Zhang's words, which deserves careful understanding. "Not square, not round. Restrain the left and promote the right, look ahead and look back "is Cao Zhang's appearance characteristic;" ""animals want to fly; The cunning rabbit is violent, but it will run before it runs "is the charm feature of Cao Zhang."
(2) Wei Heng's "Four-body Book Potential" says: "Birds and beasts want to fly; The sly rabbit is violent and will not rush. " Calligraphy is described by the dynamic form characteristics of the external tension of natural birds and beasts. Its semantics emphasizes the internal "potential" and internal rhythm.
There is a concept called "potential" in Sun Tzu's Art of War. Sun Tzu's art of war says that the rushing water flows downwards, and its power can pumice, because the water is powerful. "Potential" is an internal force. Calligraphy strives to create an internal imbalance in form, which leads to conflicts, and the form is stifled internally to maximize its power. "Potential" is actually a kind of tension. Calligraphy should show the instantaneous beauty of "a cunning rabbit is fierce and scary, and it must run before running".
Cao Zhang's creation should not only embody the serenity of independent discourse, but also pursue the smart charm of lateral jumping contained in serenity.
Most of the 28 characters in this Wang Zhihuan's "Liangzhou Ci" banner are planar, and the rest of the characters, even though they are very long, are still horizontal, such as "yellow", "spring" and "Luo".