In all our studies, continues concentration and diligence are the hallmark of success. It is meaningless to begin the study of karate-do as if you were stopping by a roadside stand for refreshment on your way home. A random sampling of karate, or random practice, will not suffice. Only through continual training will you be able to obtain, in mind and body, the fruits of the Way.
–Gichin Funakoshi, The Twenty Guiding Principles of Karate: The Spiritual Legacy of the Master, 68
