In the Spring and Autumn Period and the Warring States Period, there was a very mysterious figure named Wang Xue, that is, the Ghost Guzi we know, who was praised by later generations as "Seeking Saints", he was well versed in the art of war, proficient in Tao Strategy, but often went into the mountains to meditate and did not ask about the world. However, all of the disciples he cultivated were all talents of various countries, such as Su Qin, Zhang Yi, Li Mu, Shang Martin, Bai Qi, Sun Zhen, Pang Juan, and so on, but even though Ghost Guzi had the wisdom of heaven and earth, it was difficult to hide the dangers in human nature.
Among the disciples of Oniguzi, Sun Zhen and Pang Juan had a relatively good relationship, and they once studied the art of war with Oniguzi. Pang Juan realized after three years that he had already left the school, so he bid farewell to Ghost Guzi and Sun Zhen and went down the mountain to seek merit.
Before Pang Juan descended the mountain, he swore to Sun Zhi: "Gou is rich and noble, and he will not forget each other", and Sun Zhi was touched and said goodbye.
After Pang Juan descended the mountain, Sun Zhi continued to follow Ghost Guzi to learn the art of war, Sun Zhen's talent was already higher than Pang Juan's, coupled with the humble intention to learn, so the gap between the two was getting bigger and bigger.
On the other hand, Pang Juan descended the mountain and arrived in the State of Wei, where he was given the opportunity to reuse the official Bai Dajun by King Hui of Wei. In order to fulfill his promise before going down the mountain, Pang Juan wrote a letter asking Sun Zhen to come down to the Wei kingdom.
However, after Sun Zhi came to the State of Wei, Pang Juan was jealous of Sun Bing's talents. So he fabricated the crime and tattooed the words "collaborating with the enemy and treason" in Sun Zhen's face. He was also sentenced to death, removing his kneecap and breaking Sun Bing's feet. After that, Sun Bing pretended to be crazy and sold stupid before he saved his life.
Fortunately, there was an emissary of the State of Qi who came to the State of Wei, and this emissary of the State of Qi felt that Sun Bing was extraordinary, so he secretly drove Sun Bing back to the State of Qi by car. After arriving in the State of Qi, Sun Zhen won the King of Qi because he instructed "track and field horse racing", and was rewarded by Tian Ji for this. Tian Ji introduced Sun Juan to the King of Qi and made him a military master.
In 354 BC, the State of Zhao attacked Wei's ally, Wei, so the State of Wei sent troops to besiege the capital of the State of Zhao, Handan. The State of Zhao asked for help from Qi and Chu, and the King of Qi Wei sent Tian Ji and Sun Zhen to lead the rescue of the State of Zhao, and defeated the Wei army by "encircling Wei and saving Zhao". Pang Juan was also captured by Sun Zhensheng, but Sun Zhen did not kill Pang Juan, and now is not the best time.
In 341 BC, the State of Wei raised an army against Korea, and Han Zhaohou sent emissaries to the State of Qi for help. Sun Bing promised Korea, but did not send troops immediately, but waited until the Wei army attacking Korea was exhausted before sending troops to the rescue.
In 342 BC, the State of Qi appointed Tian Ji as the main general, and Sun Zhi sent troops to rescue Korea for the military division. Pang Juan saw that the State of Qi had sent troops, so he gave up attacking the State of Wei to meet the State of Qi, and Pang Juan wanted to be humiliated by Sun Zhisheng with one blood, so he prepared for a quick battle.
Looking at the mighty 100,000-strong army of the Wei army, Sun Bin did not confront it head-on, but once again used the strategy of "encircling Wei to save Zhao" and setting up an ambush on the road that Pang Juan had to pass.
After Pang Juan entered the trap designed by Sun Zhen, he was killed by the random arrows of the Qi army and fell into a pool of blood. Some people say that Sun Bin finally took revenge, perhaps What Sun Zhen really wanted was not revenge, but to put the overall situation first, otherwise Sun Bing would not have spared Pang Juan during the Battle of Guiling, and in the Battle of Maling, he was also shot by random arrows. Perhaps this is the pattern, if Pang Juan could tolerate Sun Zhen, the State of Wei would not have suffered such a fiasco in succession, and eventually lost its hegemonic position.