The official history did not record that Confucius knew martial arts, but only said that he knew the six arts of "ritual, music, archery, imperial defense, calligraphy and counting", indicating that he could shoot arrows. Confucius usually wore a sword as a popular decoration for literati at that time, which did not mean that he had high martial arts. Even if he can jump a few times, it's fitness, because his Confucian thought of benevolence can't practice the art of killing people.