Similar quotesThe best weapon against an enemy is another enemy.
Friedrich Nietzsche 
Never interrupt your enemy when he is making a mistake.
Napoleon 
I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
Albert Einstein 
Peace: In international affairs, a period of cheating between two periods of fighting.
Ambrose Bierce 
War doesn't determine who's right - only who's left.
Bertrand Russell 