Build a man a fire and he's warm for one day. Light a man on fire and he's warm for the rest of his life...
"If you always behave rationally, then reason becomes the leash by which your enemy pulls you. Yet if you knowingly make irrational decisions, have you not betrayed your own ability? The battlefield is not a place for actors, playing the role of this or that style of commander, for you can always imitate a worse commander, but never a better one. You must be yourself, even if your enemy comes to know your weaknesses, for you cannot pretend to have personal abilities and traits that you do not have."