In my opinion, there are two kinds of eyes: one kind simply looks at things and the other sees through things to perceive their inner nature. The former should not be tense [so as to observe as much as possible] ; the latter should be strong [so as to discern the workings of the opponent’s mind clearly] . Sometimes a man can read another’s mind with his eyes. In fencing, it is all right to allow your own eyes to express your will but never let them reveal your mind. This matter should be considered carefully and studied diligently. MIYAMOTO MUSASHI, 1584–1645
