Capt. Proctor: Mahoney must think he's as dumb as we are.
Hercule Poirot: Have you ever noticed a secret passage that does not start in the library?
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.
Sandy: I don't know if you're a detective or a pervert.
Jeffrey: Well, that's for me to know and you to find out.