A classic answer for a classic question. By the way What the **** was that image? That competition has standed for too much time IMO.
"Revenge is never a straight line. It's a forest. And like a forest it's easy to lose your way to get lost When engaged in combat, the vanquishing of thine enemy can be the warrior's only concern. This is the first and cardinal rule of combat. Suppress all human emotion and compassion. Kill whoever stands in thy way, even if that be Lord God, or Buddha himself..."