Jiang Taigong's fishing story should be false. Why did King Wen worship an old man as commander in chief when he saw him by a stream in the suburbs? Can an old man without identity rule Zhou Jun composed of nobles? The Shang and Zhou Dynasties were an era of strict slavery, and the power was completely passed down in accordance with the patriarchal clan system, which was no less than that of Shu Ren. Nobles are the leaders, freemen are the backbone soldiers, and slaves are driven to serve as auxiliary soldiers and servants. This was the situation at that time, not to say that it was difficult for nobles to be officials or officials.