During the Spring and Autumn Period and the Warring States Period, the society was in great turmoil and great changes, and the gentry class grew stronger and stronger. For the benefit of the class and ruling group to which they belong, they run around, fighting for power and profit, and taking discernment as the male. In the process of hegemony, vassal States realized that national strength and army were important, and political offensive and diplomatic struggle were also indispensable conditions for hegemony. It is in this social situation that groups of lobbyists appeared in the corporal class. Especially after Shang Yang's political reform, the rise of Qin in the west has increasingly become a threat to the six countries in Shandong. The six countries tried to unite against Qin, while Qin took advantage of the contradiction between the six countries to "make friends far away and attack near", thus dividing and disintegrating the six countries and forming a century-long dispute between "unification" and "Lian Heng". Consultants and strategists have demonstrated their talents in this complicated political, military and diplomatic struggle. Most of them have certain political opinions, often for personal fame and fortune, and they constantly change their minds, have it both ways; However, they are familiar with the art of vertical and horizontal, relying on their own intelligence and eloquence, lobbying everywhere, dealing with political groups, and taking the princes by surprise to levy cities, plunder land, kill people, and destroy the country. Zhang Yi, Su Qin, Chen Ke and others are their typical representatives.

The story of Su Qin: /view/ 1665 1.htm.

Zhang Yi's Story: /view/294 1.htm#8

The story of Chen Yi:/view/399945.htm.