Do not let your spirit be influenced by your body, or your body be influenced by your spirit. Be neither insufficiently spirited or over spirited. An elevated spirit is weak and a low spirit is weak. Do not let the enemy see your spirit.
Miyamoto Musashi (2013). “The Book of Five Rings: A Text on Kenjutsu and the Martial Arts in General, Written by the Swordsman Miyamoto Musashi”, p.34, Lulu Press, Inc
