Karate is like boiling water: without heat, it returns to it's tepid state

Any man will be able, after sufficient practice, to accomplish remarkable feats of strength, but he may go only so far and no farther. There is a limit to human physical strength that no one can exceed.

You may train for a long time, but if you merely move your hands and feet and jump up and down like a puppet, learning karate is not very different from learning a dance. You will never have reached the heart of the matter; you will have failed to grasp the quintessence of karate-do.

Karate begins and ends with courtesy.

Karate is a technique that permits one to defend himself with his bare hands and fists without weapons.

Once a kata has been learned, it must be practised repeatedly until it can be applied in an emergency, for knowledge of just the sequence of a kata in karate is useless.

In time of grave public crisis, one must have the courage to face a million and one opponents.