“Your enemy is never a villain in his own eyes. Keep this in mind; it may offer a way to make him your friend. If not, you can kill him without hate — and quickly.”
“Your enemies can kill you, but only your friends can hurt you.”
“It is in a man's own mind, not his enemy or foe, that leads him to evil ways.”
“It is a man's own mind, not his enemy or foe, that lures him to evil ways.”
“There's ways you can trust an enemy you can't always trust a friend. An enemy's never going to betray your trust.”
“You must never call your enemy by a name you choose for him." “Instead you must call him by the name he calls himself. What he chooses will reflect his pride; it will reveal his desires. But what you choose to call him will reveal your fears, which should be kept to yourself, lest your enemy find the way to exploit them.”