(After being asked about how his flight was and recieving a pat on the back) It was fine. And I kinda have this thing about people touching me.

(First line in the movie) There was a time...

(Last lines of the movie) My name's Goodkat. You can call me Mr. Goodkat.

Brikowski: Who are you?
Slevin: Philosophically speaking?
Brikowski: Name.
Slevin: Rank, serial number?
Dumbrowski: You should really play ball kid.
Slevin: Really? You think I'm tall enough?
[Punches Slevin in the stomach]
Brikowski: What is your name?
Slevin: [gasping for breath] Oh yeah, now I remember, Slevin Kelevra.

Elvis: Wait, wait, wait. Look Nick, Slevin, Clark Kent, whatever the fuck your name is. The fact of the matter is that the Virgin Mary herself could come waltzin' in here right now with her fine ass, titties hangin' out and everything and if she told me your name was Jesus Christ, I still got to take you to see the Boss. You know why?
Slevin: No.
Elvis: Orders. And you do know what orders is right?
Slevin: I think I understand the concept of-
Elvis: Orders is "orders".
Slevin: I guess no one ever taught you not to use the word your defining in the definition.
[Elvis punches him]
Elvis: Nigga say somethin' else. I will break your motherfucking nose. I ain't playin' with you.
Slevin: My nose is already broken.

Lindsey: How ironic.
Slevin: I know, I don't even gamble.
Lindsey: No. A mobster with a gay son. That's ironic.

Lindsey: What happened to your nose?
Slevin: I was using it to break some guy's fist.

Mr. Goodkat: The reason I'm in town, in case you're wondering, is because of the Kansas City Shuffle.
Nick: What's a Kansas City Shuffle?
Mr. Goodkat: A Kansas City Shuffle is when everybody looks right, you go left.
Nick: Never heard of it.
Mr. Goodkat: It's not something people hear about. Falls on deaf ears mostly. This particular one has been over twenty years in the making. No small matter. Requires a lot of planning. Involves a lot of people. People connected by the slightest of events. Like whispers in the night, in that place that never forgets, even when those people do. It starts with a horse.

Mugger: Hey, you got the time?
Slevin: Yeah man, it's about 3:20.
Mugger: Yo, you got a smoke?
Slevin: No sorry, I don't smoke.
Mugger: Well then why don't you just give me your wallet, and I'll buy my own smokes.
Slevin: Am I being mugged?
[He is punched in the nose]

Nick: Fuck. Shit. Jesus.
Mr. Goodkat: 'Fuck, Shit, Jesus' is right

Slevin's Girlfriend: [after Slevin walks in on her cheating on him] This is an accident.
Slevin: What, like... He tripped, you fell?

Slevin: Anything else you want to tell me?
The Boss: I suppose I don't need to say anything as trite and cliche as "go to the police and you're a dead man".
Slevin: I think you just did.
The Boss: I guess I did.

Slevin: How did you find out about us?
Mr. Goodkat: I'm a world-class assassin, fuckhead. How do you think I found out?

Slevin: I have ataraxia.
Lindsey: Ataraxia?
Slevin: It's a condition characterized by freedom from worry or any other pre-occupation really.

Slevin: I'm not gay.
Brikowski: I'm a cop.
Slevin: Well, I'm not a robber, if you catch my drift.