Cai Lun invented papermaking in the Eastern Han Dynasty. The materials are only bark, hemp head, rags and old fishing nets. It is difficult to make and consumes less manpower and material resources. It is really beneficial to the people, because before that, the paper used by the ancients was cotton silk, which was extremely heavy and expensive, and almost became the use of nobles and the rich. Ordinary people don't have good writing tools. This invention of Cai Lun made our civilization pass on, which was the first in the world at that time.
Ou Yangxun, a calligrapher in the Tang Dynasty, was a red man around the prince. He focused on calligraphy, studied Wang Xizhi's calligraphy, and formed his own "European style". He is one of the four great calligraphers in the Tang Dynasty. His work "Thirty-six Hair" summarizes the calligraphy pen, situational skills and aesthetic requirements, and is a precious heritage of Chinese calligraphy circle.
Zeng Guofan was a minister in the late Qing Dynasty, a red man around Cixi, a bachelor of cabinet, Li Hongzhang and others founded Jiangnan Manufacturing General Administration. He fought against the Taiping Heavenly Kingdom and trained a land division in Changsha to lead the Westernization Movement. Although it failed in the end, Zeng Guofan's patriotic feelings are obvious to all, but his thoughts are too rigid, copying the economic development of the West and failing to find the real reason for China's backwardness.