Sun Tzu. The art of war (№ 279365)

So you know what will win in five cases: win, if you know when to fight and when not to; win, when you know how to use large and small forces; win where higher and lower have the same desire to win when they themselves are cautious and waiting for the enemy; defeat those who have a talented commander, and the Emperor does not control them. These five provisions and have the victory.