The Judo pupil, therefore, must cultivate his mind; he must never feel fear, never lose his temper, never be off his guard; but he must be cool and calm, though not absent-minded; he must act as quick as thought, according to circumstances. He must also be dexterous as well as bold both in attack and in defense.

— Yokoyama Sakujiro

The most jittery Yokoyama Sakujiro quotes that will activate your inner potential

In those days contests were extremely rough and frequently cost the participants their lives. Thus, whenever I sallied forth to take part in any of those affairs, I invariably bade farewell to my parents, since I had no assurance that I should ever return alive.