"Avoid what is strong, and strike at what is weak."

"Let your plans be dark and impenetrable as night, and when you move, fall like a thunderbolt."

"If I am able to determine the enemy's dispositions while at the same time I conceal my own, then I can concentrate and he must divide."

"Know thy self, know thy enemy. A thousand battles, a thousand victories."

"The skillful employer of men will employ the wise man, the brave man, the covetous man, and the stupid man."