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.
Miyamoto MusashiThirdly, the gentleman warrior, carrying the weaponry of his way. The way of the warrior is to master the virtue of his weapons. If a gentleman dislikes strategy he will not appreciate the benefit of weaponry, so must he not have a little taste for this?
Miyamoto MusashiUnless you really understand others, you can hardly attain your own self-understanding.
Miyamoto Musashi