- Arnold Rothstein: I find you don't really know a man until you play cards with him.
- Enoch 'Nucky' Thompson: Don't we know each other, Arnold?
- Arnold Rothstein: One would have thought so.
- Meyer Lansky: [talking to Nucky about Luciano and him] Last year we made more money than the President of the United States.
- Meyer Lansky: [quietly to an upset Arnold, urging him to quit the poker game] Wouldn't it be best if people don't see you like this?
- Jake Guzik: I'll be out in a week. I only missed three pickups.
- Al Capone: You get your strength back. I'm gonna slip one of these nurses a fin. Get you a nice little sponge bath.
- Frank Capone: Make it a couple of nurses. -There's a lot of Jake to sponge down.