Jigoro Kano's Five Principles of Judo: 1. Carefully observe oneself and one's situation, carefully observe others, and carefully observe one's enviro… - Kanō Jigorō

In Randori we teach the pupil to act on the fundamental principles of Judo, no matter how physically inferior his opponent may seem to him, and even if by sheer strength he can easily overcome him; because if he acts contrary to principle his opponent will never be convinced of defeat, no matter what brute strength he may have used.

Another point is the meaning of professionalism. With Judo, we have no professionals in the same sense as other sports. No one is allowed to take part in public entertainment for personal gain. Teachers certainly receive remuneration for their services, but that is in no way degrading. The professional is held in high regard like the officers of a religious organization or a professor in the educational world. Judo itself is held by us all in a position at the high altar. To reconcile this point of view with the Western idea is difficult. Success or a satisfactory result of joining the Olympic Games would much depend on the degree of understanding of Judo by the other participating countries.

One more type who can benefit from the practice of judo are the chronically discontented, who readily blame others for what is really their own fault. These people come to realize that their negative frame of mind runs counter to the principle of maximum efficiency and that living in conformity with the principle is the key to a forward-looking mental state.