When you have mastered the Way of strategy you can suddenly make your body like a rock, and ten thousand things cannot touch you. This is the body of… - Miyamoto Musashi

The important thing in strategy is to suppress the enemy's useful actions but allow his useless actions

If you rely on strength, when you hit the enemy's sword you will inevitably hit too hard. If you do this, your own sword will be carried along as a result. Thus the saying, "The strongest hand wins", has no meaning. In large-scale strategy, if you have a strong army and are relying on strength to win, but the enemy also has a strong army, the battle will be fierce. This is the same for both sides. Without the correct principle the fight cannot be won. The spirit of my school is to win through the wisdom of strategy, paying no attention to trifles. Study this well.

Efficiency and smooth progress, prudence in all matters, recognizing true courage, recognizing different levels of morale, instilling confidence, and realizing what can and cannot be reasonably expected — such are the matters on the mind of the master carpenter. The principle of martial arts is like this.