When you decide to attack, keep calm and dash in quickly, forestalling the enemy...attack with a feeling of constantly crushing the enemy, from first to last.

The true science of martial arts means practicing them in such a way that they will be useful at any time, and to teach them in such a way that they will be useful in all things.

To become the enemy, see yourself as the enemy of the enemy

It is said the warrior's is the twofold Way of pen and sword, and he should have a taste for both Ways. Even if a man has no natural ability he can be a warrior by sticking assiduously to both divisions of the Way.

Cutting down the enemy is the way of strategy, and there is no need for many refinements of it.

Perceive that which cannot be seen with the eye.

Respect the gods and buddhas, but never rely on them.