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
Dave Lowry (martial arts) Dave Lowry (martial arts) Dave Lowry is an American writer best known for his articles, manuals and novels based on Japanese martial arts. A student of Japanese martial arts since 1968, when he began studying Yagyū Shinkage-ryū kenjutsu under Ryokichi Kotaro of the Nara Prefecture of Japan, he has also studied Shintō Musō-ryū, as well as karate, aikido, and Kodokan judo. He has a degree in English, and has written about a variety of topics related to budō, the Japanese concept of the "martial way." He has written training manuals on use of weapons such as the bokken and jo,