Only a true weakling is capable of true courage.

Always be ready to release your mind.

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.

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.

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.

When two tigers fight, one is certain to be maimed, and one to die.