Carefully observe oneself and one's situation, carefully observe others, and carefully observe one's environment. Consider fully, act decisively.

Judo helps us to understand that worry is a waste of energy.

Judo 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

In randori, one must search out the opponent's weaknesses and be ready to attack with all the resources at his disposal the moment the opportunity presents itself, without violating the rules of judo.

If there is effort, there is always accomplishment.

In an argument, you may silence your opponent by pressing an advantage of strength or of wealth, or of education. But you do not really convince him. Though he is no longer saying anything, in his heart he still keeps to his opinion, the only way to make him change that opinion is to speak quietly and reasonably. When he understands that you are not trying to defeat him, but only to find the truth, he will listen to you and perhaps accept what you tell him.

Judo is the way to the most effective use of both physical and spiritual strength.