Cui Yuan (78-143), whose courtesy name was Ziyu, was a native of Anping, Zhuojun (now part of Hebei Province). Scholar and calligrapher of the Eastern Han Dynasty. Isolated at an early age, Rui was eager to learn. He studied under Jia Kui, studied Chinese literature, and wrote "Yi Zhuan" in the capital. At the age of eighteen, he traveled to the capital and became friendly with Ma Rong and Zhang Heng. His official career suffered many setbacks, and he became a county official at the age of forty. In the early years of Emperor An of the Han Dynasty, he became the prime minister of Jibei.

  He was a famous calligrapher in the Han Dynasty, especially good at cursive calligraphy. He learned from Du Du and was known as "Cui Du" at that time. Later, Zhang Zhi adopted Fa Cui and Du, and his calligraphy made great progress. He became the master of cursive calligraphy in the Han Dynasty and was known as the "Sage of Cursive Calligraphy". Later generations spoke highly of Cui Yuan's cursive script. Zhang Zhi, the "Grass Sage", said that he was "not as good as Cui Du". Wei Dan, a native of the Wei Dynasty during the Three Kingdoms period, said that "the style of calligraphy is very dense and the knotting of characters is skillful." That is to say, the style of writing is very dense and the knotting of characters is exquisite and beautiful. Liang Yuan Ang's "Ancient and Modern Book Reviews" of the Southern Dynasties said: "Cui Ziyu's book is like a dangerous peak blocking the sun, a solitary pine branch, which means despair." This means that the power of his book is like "a dangerous peak blocking the sun, a pine branch". . The works are untested. He is the author of "Cursive Script". "Cursive Script Shi" is an article discussing cursive writing techniques, describing it using metaphors. The article can be found in "Jin Shu Biography Sixth Biography of Wei Heng".

The virtuous woman has been tired for a long time. To deal with this, she is worried. But my heart is already in great shape now, so don’t worry about it anymore. When a letter comes, I will attach several letters to inform him about it, so as to relieve his worries. (Refer to "Quanhou Hanwen. Volume 45. Cui Yuan" by Yan Kejun of the Qing Dynasty)