The modern west evolved from the culture and social and political system of the Middle Ages in Europe. Medieval rulers, that is, princes and nobles, belonged to the professional armed class, and an important source of their legitimacy was the monopoly of violence. Therefore, force became the core of aristocratic education. This elite culture has continued to the modern western education system. It is an exaggeration to say that "Napoleon was defeated by the children playing in the Eton College", but this statement is enough to reflect the esteem of British nobles for sports at that time. However, there are also many comments that after the British Empire dominated the world, the ruling group was too gentrified and the "English gentleman" was too qualitative, which eventually led to the decline of the British Empire. President Theodore Roosevelt is one of the most talented presidents in American history, but he deeply felt the danger of "over-civilization" with words but no weapons. He likes football rather than football, because football is more savage and laissez-faire, and it is more meaningful to temper the leader's character. At that time, football was mainly played in Ivy League and aristocratic boarding high schools, which cultivated the ruling class, so it was not so strange.
In the past 100 years, the development of American football in the west, especially in the United States, has not been eradicated. However, the reason why this sport is becoming more and more prosperous is not only its commercial value as an ornamental sport, but also its educational function as a participatory sport. This is not only because wildness has maintained human's strong willpower and competitive spirit in the evolution of civilization, but also helps to develop team spirit and cultivate leadership. The goal of education is to cultivate people. The core of cultivating people is to keep the balance in human nature: brave but not rude, civilized but not cowardly. It should be said that the modern west dominates the world thanks to this balanced personality education.