Sergeant kills people with his tongue: for example, Zhang Yi bluffed Chu Huaiwang to death, and Zhuge Liang scolded Wang Lang alive in front of the two armies in his later years.
Corporal's killing stone plate: For example, in history, Jing Ke stabbed Qin. Corporal didn't have brilliant wisdom, but hid weapons and solved them by force.
Extended data:
Original: Mao. Confucius said, "A staff sergeant kills people and makes them write." He asked again, "Why did the sergeant kill people?" Confucius said, "A sergeant kills with his tongue." He asked again, "Why did the corporal kill people?" Confucius said, "Corporal kills people with stone plates." "。
Confucius said: Staff sergeant kills with pen tip, sergeant kills with words, and corporal kills with stone plate. It means that the staff sergeant writes articles with a pen to kill people, the sergeant kills people with words, and the corporal kills people with weapons such as stone plates.