As the name implies, lower case (xi m: ok m: i) is a kind of lower case, which was created by Zhong You in the Wei Dynasty of the Three Kingdoms. He is the most outstanding authoritative official script master, and his regular script brushwork was born in Han Li. His brushwork is very vivid, but his structure is broad and flat, and his horizontal painting is long and vertical painting is short. He still retains the legacy of official script, but his regular script method has been prepared. When he arrived in the Eastern Jin Dynasty, Wang Xizhi earnestly studied lower-case calligraphy to make it perfect, which also set a good appreciation standard for China's lower-case calligraphy.
There are many copybooks in small letters, among which the reputation of small letters in Jin and Tang Dynasties is the most prominent. It usually includes Xuan Tie by Zhong You in Wei Dynasty, Yue Yi Lun by Wang Xizhi, Cao E Bei, Huang Ting Jing, Wang Xianzhi's Sonnets of Luoshen, and Ling Fei Jing by Tang Zhong Shaojing.
Writing principle of lowercase letters
Generally speaking, writing small characters is very different from writing big characters. In principle, writing big characters should be close and seamless, and writing small characters should be more spacious. In other words: writing big characters should be as accurate as writing small characters; And writing small characters should be like Shu Lang, so the ancients said, "Writing big characters should be like small characters, and writing small characters should be like big characters." In Su Dongpo's prose, there is a saying that "the big characters are hard to be seamless, and the small characters are hard to be generous".
Because when we usually write big characters, we think that our position (area) is very wide and we can write freely. As a result, the fonts become loose and empty. Writing small print is just the opposite, because the space is too small, and it is inevitable that you will try your best to shrink it if you are worried that you can't write it. It tends to curl. This is a natural psychological phenomenon, which is easy to break. Therefore, the CPSU's statement that "there are great difficulties and minor difficulties" is based on this statement and is based on experience.