Rick: Of all the gin joints, in all the towns, in all the world, she walks into mine.

~~~

Rick: Louis, I think this is the beginning of a beautiful friendship.

~~~

Captain Renault: What in heaven's name brought you to Casablanca?
Rick: My health. I came to Casablanca for the waters.
Captain Renault: The waters? What waters? We're in the desert.
Rick: I was misinformed.

~~~

Rick: How can you close me up? On what grounds?
Captain Renault: I'm shocked, shocked to find that gambling is going on in here!
[a croupier hands Renault a pile of money]
Croupier: Your winnings, sir.
Captain Renault: [sotto voce] Oh, thank you very much.
[aloud]
Captain Renault: Everybody out at once!

~~~

All from Casablanca, all classic lines.