For one thing, Judo in reality is not a mere sport or game. I regard it as a principle of life, art and science. In fact, it is a means for personal cultural attainment.
Kano JigoroJudo is a study of techniques with which you may kill if you wish to kill, injure if you wish to injure, subdue if you wish to subdue, and, when attacked, defend yourself
Kano Jigoro