Hannibal Lecktor: If one does what God does enough times, one will become as God is.
Hannibal Lecktor: Have you ever seen blood in the moonlight, Will? It appears quite black.
Will Graham: I thought you might be curious to see if you're smarter than the person I'm looking for.
Hannibal Lecktor: Then, by implication, you think you're smarter than me, since it was you who caught me.
Will Graham: No. I know that I'm not smarter than you.
Hannibal Lecktor: Then how did you catch me?
Will Graham: You had disadvantages.
Hannibal Lecktor: What disadvantages?
Will Graham: You're insane.
Chosen answer: He wears the stocking over his face for two reasons: (a) to protect his identity (to make Lounds think he'll survive) and (b) remember that Francis believes he is an "ugly monster" so he is also wearing the stocking to defer judgement away from him.
xxCadyxx