Other theories attribute his origin to either the city of Dancheng in ancient nation of Chen, or near the county of Yunyang (Shaanxi) on the bank of the Han River.
During the Wei and Jin dynasties, people regarded him as a hermit and a Taoist priest who lived away from the masses in the Ghost Valley (鬼谷).
[4] While there has been no final outcome to this discussion, Chinese scholars believe that the compilation reflects a genuine corpus of Warring States period writings on political lobbying.
[6] Guigu Xiansheng is also said to have taught famous Warring States generals Sun Bin and Pang Juan.
Principles of rhetoric and persuasion taught in Guiguzi include keeping oneself hidden and silent so that the counterpart cannot see what one is doing.