Argall (Yorick van Wageningen) paraphrases a rant spoken by Fred Dobbs (Humphrey Bogart) in THE TREASURE OF THE SIERRA MADRE (1948). Argall's line: "Conscience is a nuisance. A fly; a barking dog. If you believe you don't have one then what trouble can it be to you?" Dobbs' line: "Conscience. What a thing. If you believe you got a conscience it'll pester you to death! But if you don't believe you got one, what could it do to ya?"