This sentence comes from "Geng Zi Xi Hand Congtan" written by Wu Yong. Wu is the son-in-law of Zeng Guofan's eldest son and the granddaughter-in-law of Zeng Guofan. According to Wu Shuo, this passage is the key to Li Hongzhang's paraphrasing of Zeng Guofan's Court Classics. Li hongzhang said to Wu Yong:
"My teacher's secret method has eighteen' ting Jing', which is really a treasure to master nature, keep fit and serve the world." "Generally speaking, it is always useless to make a hullabaloo about outside and talk about what's going on in the world. You must bow your head and be responsible, but you can achieve something. "
Its main purpose is to actively join the WTO, be brave in taking responsibility, be indomitable, and achieve effective work and career achievements.