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
Dō (martial arts) Dō (martial arts) Dō is the "go-on" vocalization of the Japanese "kanji" 道, corresponding to Mandarin Chinese (pinyin) "dào", meaning "way", with connotations of "philosophy, doctrine" (see Tao). In Asian martial arts, the word has been widely adopted as the term for a "school" or "discipline", especially in "Old School" (koryū- 古流) lineages of Japanese martial arts, such as the Kashima Shin-ryū (鹿島神流), although its use in the greater martial arts community has become much more widespread as a synonym of jutsu 術 "technique, method". The word "道" is used in quite the same way in Korean language and culture,