Black belt (martial arts) of ability when using these tactics and are sometimes referred to as McDojos or belt factories. In some Japanese schools, after obtaining a black belt the student also begins to instruct, and may be referred to as a senpai (senior student) or sensei (teacher). In others, a black belt student should not be called sensei until they are sandan (third degree black belt), or the titles kyosa or sabom in Korean martial arts as second degree or higher, as this denotes a greater degree of experience and a sensei must have this and grasp of what is involved in teaching
Japanese martial arts "heart", in context it can also mean "character" or "attitude." Character is a central concept in karate, and in keeping with the "do" nature of modern karate, there is a great emphasis on improving oneself. It is often said that the art of karate is for self-defense; not injuring one's opponent is the highest expression of the art. Some popularly repeated quotes implicating this concept include: Literally 'martial way' is the Japanese term for martial art. A code of honor for samurai way of life, in principle similar to chivalry but culturally very different. Literally "the way of the warrior",