“Know your enemy, know his sword.”

“The primary thing when you take a sword in your hands is your intention to cut the enemy, whatever the means. Whenever you parry, hit, spring, strike or touch the enemy's cutting sword, you must cut the enemy in the same movement. It is essential to attain this. If you think only of hitting, springing, striking or touching the enemy, you will not be able actually to cut him.”

“It is difficult to realize the true Way just through sword-fencing. Know the smallest things and the biggest things, the shallowest things and the deepest things.”

“The important thing in strategy is to suppress the enemy's useful actions but allow his useless actions”

“To become the enemy, see yourself as the enemy of the enemy”

“If you do not control the enemy, the enemy will control you”

“To know ten thousand things, know one well”