Teenagers in ancient times were very wise. Tell me about Zhao Jingzhen's wit.

Zhao Jingzhen, whose real name is Chang Nian, is called "Yunfeng Jushi" and is known as "Sleeping God". He was one of the famous prodigies in the Tang Dynasty.

At the age of six, Zhao Jingzhen was famous for arguing with adults. He once met an old man and tried to embarrass him with the allusion of "Confucius has no mortal stone", but Zhao Jingzhen immediately refuted it with the theory of "white horse is not a horse", which surprised the old man.

When Zhao Jingzhen was nine years old, his father asked him to learn Zhouyi. There is a six-point in this book: "Kungan", which is very puzzling. Zhao Jingzhen explained: "This must be' for the sky, for the land and Kun'." Hearing this, my father was very surprised and asked him, "How do you know all this?" Zhao Jingzhen replied: "These eight words are on the first and second pages of Zhouyi." His father valued him more and decided to give him the best education.

Therefore, Zhao Jingzhen was famous for his wit and cleverness in the Tang Dynasty, and was known as "Yunfeng Jushi".