History-Makers: Sun Tzu & The Art of War

So...in the former half, be a warrior that knows psychology; in the latter half, use that psychology to become a ninja? (Yes that's very abridged and watering down a lot, but I'm a ninja enthusiast and see the parallels)

As Sun Tzu said, “whatever you do, don’t reveal all your techniques in a youtube video. You fool. You MORON!”