The scene where Archbishop, who is probably the most corrupt person in the church is frantically praying when the whole Vatican Bank thing is about to explode in his face.

"Io sono stanco, sono imbigliato, and I wan't everyone here to know, there ain't gonna be no trouble from me..Don Corleone..Cicc' a port!"

"I stood in the courtroom like a fool."

"I am Constanza: Lord of the idiots."