“The sixteenth-century Samurai swordsman Miyamoto Musashi won countless fights against feared opponents, even multiple opponents, in which he was swordless. In The Book of Five Rings, he notes the difference between observing and perceiving. The perceiving eye is weak, he wrote; the observing eye is strong.”

“The sixteenth-century Samurai swordsman Miyamoto Musashi won countless fights against feared opponents, even multiple opponents, in which he was swordless. In The Book of Five Rings, he notes the difference between observing and perceiving. The perceiving eye is weak, he wrote; the observing eye is strong.”

— Ryan Holiday