Kyan Chōtoku on training

The following is from "What to know about karate training and what to know about fighting," by Kayan Chōtoku. The translation from Japanese is by Patrick and Yuriko McCarthy, in McCarthy sensei's excellent book: Kensei Kayan Chōtoku: The Man and his Art.  

NB:  Kayan Chōtoku was a teacher of O'sensei Chitose.

Mental and spiritual discipline is vital to developing one's fundamental disposition. If it is neglected and training only focuses on physical technique (the body, hands, and feet), the effort is worthless.  This fundamental truth must be understood in order that the practice of technique develops the mind and body.  Simultaneously, one can behave, be calm, alert, brave, Etc.

1. The aim of martial arts is to prevent violence, foster humility, and learn self-defense. This is why martial artists should behave, be modest, and loyal.
2. The martial arts cultivate the ability to react at just the right moment using the body and mind in unison. Those who misuse their skill, or are arrogant, poorly influence their community.  Such behavior is not appreciated by anyone and only harms one's own character. 
   There was a wise old saying worth remembering: "A clenched fist should be like a hidden treasure up one's sleeve; it remains a secret until someone comes looking for it."
3. The purpose of karate is to condition the body, cultivate the mind, and nurture the spirit.
4. Effective posturing is made possible by sinking one's "qi/ki" into the "daniten/tanden," being careful that it does not rise up your body. However,it is important never to be overly rooted in one's stance.
5. Kata should be practiced with the same resolve as if facing an opponent.
6. Footwork, body movement, and impacting are all actions which should always be deployed quickly. However, remember that functionally effective footwork and body movement requires one to stay on their toes (balls of the feet).
7. Understanding the application of  kata establishes clarity between the upper, middle, and lower target zones, otherwise one's effort is in vain.
8. Makiwara practice is essential in order to develop powerful tools of impact. Yet, powerful techniques are useless unless they are supported by rapid hand and footwork. Therefore, power and speed are like the wheels of a wagon; one cannot function efficiently without the other.
9. One's body, perception, and spirit must be constantly trained.