"Manato, treat the sword as an extension to your body. The whole sword is your arm and the tip of the blade is your hands. This is not just a normal discipline when handling a katana but the principle to use a sword in a fight. Because in a fight to the death with only a katana in your hands, the two of you must become one to survive."
"No matter if the katana is inside the sheathe or outside the sheathe, it doesn't change the fact that it is a lethal weapon. Swing the katana if necessary only. Do not just blindly do it."