The Person Has Been Expelled From The Tang Dynasty

Li was expelled from the study hall in Chang'an for being too foolish, and many people considered him to be an abnormal person

When he unraveled the Nine Chapters on the Mathematical Art and deciphered the situation at Yin Mountain, the entire population of Chang'an was searching for him

Poetry, numerology, and medicine

Li is gaining fame in Chang'an

Five clans soliciting, emperors extending invitations, and princes drawing in.

At this moment of splendid scenery, Li Zheng, however, remains withdrawn from the world under the watchful eyes of the crowd

... ...

Fang Xuanling: "Li Zheng, the situation in the court is severe; please come out of retirement."

Li Chunfeng: "Li Zheng, I have sent you the Tui Bei Tu, please come out of the mountains."

Cheng Yaojin: "Li Zheng, the Turks and the Tubo are attacking again, hurry and come down from the mountain"

Li Shimin: "Li Zheng, it seems that my Tang Dynasty is on the verge of collapse. Please come out of seclusion as soon as possible"

... ...

Li Zheng said calmly: "Stop the noise! My railway is almost completed"

This book is also titled "I Really Have No Money to Protect the Tang Dynasty"