Don Corleone: [to Michael] Listen, whoever comes to you with this Barzini meeting, he's the traitor. Don't forget that.
Sonny: Hey, listen, I want somebody good - and I mean very good - to plant that gun. I don't want my brother coming out of that toilet with just his dick in his hands, alright? Clemenza: The gun'll be there.
Tom Hagen: I have to get back to work. It's part of the wedding. No Sicilian can ever refuse a request on his daughter's wedding day.
Don Corleone: You talk about vengeance. Is vengeance going to bring your son back to you, or my boy to me? I forgo the vengeance of my son. But I have selfish reasons. My youngest son was forced to leave this country because of this Sollozzo business...
[after Sonny beats up Carlo Rizzi for hitting Connie] Sonny: You touch my sister again, I'll kill you.
Virgil 'The Turk' Sollozzo: He's still alive. They hit him with five shots and he's still alive!
[as Tessio and Hagen walk to Michael's house, they are met by a bodyguard, Willi Cicci] Willi Cicci: Sal... Tom... the boss says he'll come in a separate car. He says for you two to go on ahead. Tessio: Hell, he can't do that; that screws up all my a...
Sonny: Goddamn FBI don't respect nothin'.
Emilio Barzini: [during a meeting with the Five Families] Times have changed. It's not like the Old Days, when we can do anything we want. A refusal is not the act of a friend. If Don Corleone had all the judges, and the politicians in New York, then...
Don Zaluchi: I also don't believe in drugs. For years I paid my people extra so they wouldn't do that kind of business. Somebody comes to them and says, "I have powders; if you put up three, four thousand dollar investment, we can make fifty thousand...
Michael: Fabrizzio, where are you going? [Apollonia hoots the car and starts to drive it; Fabrizzio gives a quick, furtive movement... ] Michael: NO! NO APOLLONIA! [the car explodes]
Michael: You gonna kill all those guys? Sonny: Hey, Mikey, stay out of this, all right?
Sonny: Hey, whaddya gonna do, nice college boy, eh? Didn't want to get mixed up in the Family business, huh? Now you wanna gun down a police captain. Why? Because he slapped ya in the face a little bit? Hah? What do you think this is the Army, where ...
Sonny: How's Paulie? Clemenza: Oh, Paulie... won't see him no more.
[delivering his rehearsed speech] Luca Brasi: Don Corleone, I am honored and grateful that you have invited me to your daughter... 's wedding... on the day of your daughter's wedding. And I hope their first child be a masculine child. I pledge my eve...
[after Michael gets off the phone with Kay, clearly too embarrassed to tell her he loves her] Clemenza: Mikey, why don't you tell that nice girl you love her? I love you with all-a my heart, if I don't see-a you again soon, I'm-a gonna die.
Tom Hagen: I'm an attorney for the Corleone family. These men are private detectives hired to protect Vito Corleone. They are licensed to carry firearms. If you interfere you'll have to appear before a judge in the morning and show cause.
Capt. McCluskey: I thought I got all you Guinea hoods locked up! What the hell are you doing here? Michael: What happened to the men who were guarding my father, Captain? Capt. McCluskey: I pulled them guys off of here, eh, now get away from this hos...
