Harrow: You have to finish it, lad. You have to finish it. For a man to lay beaten... and yet breathing? It makes him a coward.
Inara: It's humiliation.
Mal: Sure. It would be humiliating. Having to lie there while the better man refuses to spill your blood. Mercy is the mark of a great man. (lightly stabs Atherton with the sword) Guess I'm just a good man. (stabs him again) Well, I'm all right.