There are people who are excitable by nature and allow themselves to become angry for the most trivial of reasons. Judo can help such people learn to… - Kanō Jigorō

Recently in our country, there has been a steadily increasing number of people who dislike work and pursue leisure and extravagance. Almost everywhere individuals and organizations are fighting with resultant loss of energy that is needed for positive action. In order to save them from this situation, a principle of judo, based on the maximum efficiency concept should be applied as one aspect of modern society and as a natural result of the application of the principle of maximum efficiency, a mutual welfare and prosperity is believed to be the only effective way to ease and neutralize the forces among these individuals and organizations.

Another tenet of randori is to apply just the right amount of force — never too much, never too little. All of us know of people who have failed to accomplish what they set out to do because of not properly gauging the amount of effort required. At one extreme, they fall short of the mark; at the other, they do not know when to stop.

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.