2. Yu Shinan: Yu Shinan does not choose paper and pen when writing, and pays great attention to sitting posture and wrist movements. He believes that as long as the posture is correct and the wrist is weak, even thick paper and bald pen can be handy and creative.
3. Chu Suiliang: Chu Suiliang studied calligraphy, first under Shinan and then under the French king Wang Xizhi. He, Yu Shinan and Xue Ji are also called "four outstanding men in the early Tang Dynasty", and his ink handed down from generation to generation includes "Meng Shi Bei" and "preface to the sacred instruction of Yanta".