Arthur: Which is the greatest quality of knighthood? Courage? Compassion? Loyalty? Humility? What do you say, Merlin?
Merlin: Hmm? Ah. Ah. Ah, the greatest. Uh, well, they blend, like the metals we mix to make a good sword.
Arthur: No poetry. Just a straight answer. Which is it?
Merlin: All right, then. Truth. That's it. Yes. It must be truth above all. When a man lies, he murders some god of the world. You should know that.