You must be deadly serious in training. When I say that, I do not mean that you should be reasonably diligent or moderately in earnest. I mean that your opponent must always be present in your mind, whether you sit or stand or walk or raise your arms.
Gichin FunakoshiThe secret principle of martial arts is not vanquishing the attacker, but resolving to avoid an encounter before its occurrence. To become an object of an attack is an indication that there was an opening in one's guard, and the important thing is to be on guard at all times.
Gichin FunakoshiSeek perfection of character. Be faithful. Endeavor. Respect others. Refrain from violent behaviour.
Gichin Funakoshi