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
Japanese martial arts opponent can strike the other, after factoring in the above elements. For example, a faster opponent's "maai" is farther away than a slower opponent. It is ideal for one opponent to maintain "maai" while preventing the other from doing so. The Three Attacks The principle of Shuhari describes the three stages of learning. Literally meaning "flow" in Japanese, Ryū is a particular school of an art. U.S.A. school of Japanese martial arts. is the title used for a teacher, in a similar manner to a college 'Professor' in the United States. translates as "headmaster" meaning the head of a "ryu".