Did Guiguzi fruit exist in the Warring States Period?

Guiguzi should exist, after all, it is recorded in the official history, and it should be more reliable that he is the teacher of Su Qin and Zhang Yi. Historical Records Volume 069 Biography of Su Qin said: "People from Luoyang, Eastern Zhou Dynasty, Su Qin. The East is the teacher, and Xi is to Mr. Guigu. "

As for whether Pang Juan and Sun Bin are his students, the evidence is insufficient, only in literary works such as The Romance of Sun Pang. I can only say that from the age, it is possible.

Guiguzi was originally named Wang Xu. Later generations verified that Ghost Valley refers to Ghost Valley Mountain in Dengfeng County, Henan Province, where Wang Xu lived in seclusion for a long time, so the homonym was misinformed. After all, Ghost Valley sounds more mysterious than Ghost Valley. Later, Taoism called him the ancestor of Wang Chan.

However, the real Guiguzi has nothing to do with Taoism. He was the founder of the strategists in the Warring States Period. If he is not true, a hundred schools of thought will lose an important sect in the Warring States period, so his authenticity should be beyond doubt. Su Qin and Zhang Yi are strategists, so it is credible to say that they are disciples of Guigu. While Pang Juan and Sun Bin belong to military strategists, it is doubtful whether to learn from him.

According to the dates of Su Qin, Zhang Yi, Pang Juan and Sun Bin, I guess Guiguzi was born around 400 BC. If you really live a hundred years like Taoist legend people, you will die around 300 BC.

It is completely impossible to say that Guiguzi is Sun Wu's teacher. Sun Wu was about 200 years earlier than Su Qin and others! And as I said before, Guiguzi is a strategist (today he is called a diplomat). Judging from the performance of Su Qin and Yi Cheung, there is no sign of mastering the art of war. Therefore, even if Guiguzi knows the art of war, he is definitely not in the same class as Sun Wu.