Do not regret what you have done
Do not let your opponent see your spirit
Fourthly, the way of the artisan. The way of the carpenter is to become proficient in the use of his tools, first to lay his plans with true measure and then perform his work according to plan. Thus he passes through life.
The ultimate aim of martial arts is not having to use them
Do not waste time idling or thinking after you have set your goals
No man is invincible, and therefore no man can fully understand that which would make him invincible