“The world’s martial arts belongs to the same family.” What does “the original” mean?

"The martial arts in the world belong to the same family", "Ben" means originally, the original meaning

Why is it said that the martial arts in the world belong to the same family?

Martial arts, although there are many sects and various forms, has not left the "four strikes", that is, "hitting (including "point"), kicking, throwing (including "hair"), and taking"; "eight methods" , that is, "hands, eyes, body technique, footwork, spirit, energy, strength, and kung fu"; why is it said that the world of martial arts is one family?

Martial arts, although there are many sects in various styles, have not left the "four strikes" ', that is, "hitting (including "point"), kicking, throwing (including "hair"), and taking"; "eight methods", namely "hands, eyes, body method, footwork, spirit, energy, strength, and kung fu" "Twelve shapes", that is, "moving like a wave, quiet like a mountain, rising like an ape, falling like a magpie, standing like a pine, upright like a crane, turning like a wheel, dismantling like a bow, light like a leaf, heavy like iron, fast Like the wind, slow as an eagle.” In terms of the effects it pursues, they are all three aspects: fitness, resistance to violence, and development of human potential. In terms of the requirements for boxing practice, it is emphasized that the spirit should be solidified internally, comfortable externally, coordinated internally and externally, flexible and steady, quick and powerful, using skill to control clumsiness without using brute force. In terms of boxing theory and boxing techniques, "Yin Yang and Five Elements" are emphasized. Morally speaking, they all emphasize acting bravely when seeing justice, upholding justice, eradicating violence, defending the country and the people, defending oneself against violence, not being aggressive, and not doing bad things. Therefore, it is said: "The world of martial arts is one family."

Since the world of martial arts is one family, why is there still a distinction between internal and external martial arts in the martial arts world? How to briefly distinguish between internal and external?

There are many types of Chinese martial arts. In order to distinguish them scientifically, the martial arts community divides them into two types according to their main characteristics, namely internal martial arts and external martial arts. A steel file, its fingers are like a (hook) rod, its power is like Mount Tai, and its eyes are like lightning."