Major Strasser: You give him (Rick Blaine) credit for too much cleverness. My impression was that he's just another blundering American. Captain Renault: We musn't underestimate American blundering. I was with them when they blundered into Berlin in 1918.

Everybody has something to conceal.

Ah, nuts. I'm an actor. I just do what comes naturally.

I don't approve of the John Waynes and the Gary Coopers saying "Shucks, I ain't no actor - I'm just a bridge builder or a gas station attendant." If they aren't actors, what the hell are they getting paid for? I have respect for my profession. I worked hard at it.

Such a lot of guns around town and so few brains!

Rick: Here's looking at you, kid.

I gave up drinking once -- it was the worst afternoon of my entire life.