“There are but two powers in the world, the sword and the mind. In the long run the sword is always beaten by the mind”
“There are in the world, two powers. The sword and the spirit. The spirit has always vanquished the sword.”
“There are two powers in the world; one is the sword and the other is the pen. There is a great competition and rivalry between the two. There is a third power stronger than both, that of the women.”
“A man with no sword can never be beaten in swordmanship.”
“My brother has his swords, I have my books. A mind needs books like a sword needs a whetstone.”
“In Japanese swordsmanship, it is not uncommon to speak of a unity of mind, body, and sword.”