Grandmaster (martial arts) of "Dan" rankings and Black belt and Red belt in martial arts both derive from Judo where they were adopted by its founder Kanō Jigorō. There are many terms similar or equivalent to 'grandmaster' used by various martial arts traditions. Some of these terms derive from older systems, while others are relatively modern. Japanese martial arts commonly use Sensei (先生) meaning "teacher" or literally translated, "born first" or "one who has gone before". A "Sensei" is a person who has knowledge and is willing to teach that knowledge to another. A "Sensei" assists students in "ken shiki" "the pursuit of
Footwork (martial arts) to a great deal of the martial arts world, and is predominant in arts of Japanese and Korean influence such as many forms of Karate and Tae-Kwon-Do, as well as some grappling arts such as Jiu-Jitsu, Judo, Sambo and Shooto, and few forms of Chinese martial arts, such as Wing Chun and Bruce Lee's later incarnation, Jun Fan Gung Fu. Perhaps the most stark example of linear footwork, however, is that used in European fencing, especially within the modern sport aspect. Dominated by the philosophy that the fastest and most economical way to an opponent is a straight line, arts