Bin Sun and Pang Juan come from the same school. It is said that they are all schools of guiguzi. Pang Juanxian began to serve Wei Huiwang, and then Sun Bin went out of the mountain. Pang Juan is really narrow-minded. He is worried that Sun Bin, whose talent is much higher than his own, will get more attention. Pang Juan took Sun Bin to Wei and put him under house arrest, not at ease. He found an excuse to directly convict Sun Bin, flogged Sun Bin's feet, tattooed Sun Bin's face, and tried to bury Sun Bin's talent.
However, Sun Bin did not lose heart under such a heavy blow, but began to actively plan the way out. After all, seeing his brother Pang Juan would never stop, and he was determined to kill himself. He secretly contacted the envoys of Qi. After talking with them, the envoys of Qi thought that Sun Bin was not an idle person, so they secretly took Sun Bin back to Qi by car, and Sun Bin became a guest minister under Tian Ji's door and began the road of revenge.
Everyone basically knows the story behind. First, Tian Ji horse racing made Sun Bin stand out. Then, Qi Weiwang accepted Sun Bin's suggestion, defeated Wei Jun in the Battle of Guiling and the Battle of Maling, and Wei's hegemony began to decline. Pang Juan was also killed in the Battle of Maling, and his head was brought back to Qi. Sun Bin erected a tombstone for Pang Juan outside Linzi, which is still there today.
Therefore, Pang Juan's head was brought back to Qi, and Sun Bin's revenge was indispensable. But on another level, the Battle of Guiling and the Battle of Maling, as two great battles in the early Warring States period, both ended in the failure of Wei, in which Pang Juan was bound to bear certain responsibilities. I'm coming to mean that I won't appreciate Pang Juan's contribution to Wei. Pang Juan is dead or alive, and nobody cares where the body is in Wei's ruling or opposition. How can it not decline?
Pang Juan's tomb is still standing there alone. I'm afraid Sun Bin also set up a tombstone for him because of his classmates. It is also ironic that the country that served before death was ignored, but the enemy erected a monument for himself.