To practice kata is not to memorize an order. Find the katas that work for you, understand them, digest them & stick with them for life.

The 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.

In battle, do not think that you have to win. Think rather that you do not have to lose.

When there are no avenues of escape or one is caught even before any attempt to escape can be made, then for the first time the use of self-defense techniques should be considered. Even at times like these, do not show any intention of attacking, but first let the attacker become careless. At that time attack him concentrating one's whole strength in one blow to a vital point and in the moment of surprise, escape and seek shelter and help.

There is no place in contemporary Karate-do for different schools. Some instructors, I know, claim to have invented new and unusual kata, and so they arrogate to themselves the right to be called founders of "schools". Indeed, I have heard myself and my colleagues referred to as the Shoto-kan school, but I strongly object to this attempt at classification. My belief is that all these "schools" should be amalgamated into one so that Karate-do may pursue and orderly and useful progress into man's future.

A student well versed in even one technique will naturally see corresponding points in other techniques. A upper level punch, a lower punch, a front punch and a reverse punch are all essentially the same. Looking over thirty-odd kata, he should be able to see that they are essentially variations on just a handful.

First know yourself, then know others.