Phillip Vandamm: Has anyone ever told you that you overplay your various roles rather severely, Mr. Kaplan?
The Professor: If I thought there was any chance of changing your mind, I'd talk about Miss Kendall, of whom you so obviously disapprove.
Roger Thornhill: Yes, for using sex like some people use a flyswatter.
Roger Thornhill: How do we know it's not a fake? It looks like a fake.
Bidder: Well, one thing we know. You're no fake. You are a genuine idiot.
Roger Thornhill: [as the police carry Thornhill out of the Art Auction Room, Roger says to the thug who tried to kill Roger twice before in the picture] I'm sorry old man. Too bad. Keep trying.
Roger Thornhill: You're police, aren't you? Or is it FBI?
The Professor: FBI, CIA, ONI... we're all in the same alphabet soup.
Roger Thornhill: I didn't realize you were an art collector. I thought you just collected corpses.
Roger Thornhill: When we get out of this, you can ride the train with me again.
Eve Kendall: Is that a proposition?
Roger Thornhill: It's a proposal, sweetie!
Leonard: You're not taking her on the plane with you?
Phillip Vandamm: Of course I am. Like our friends, I too believe in neatness, Leonard. This matter is best disposed of from a great height, over water.
Roger Thornhill: We'll get them. We'll throw the book at them. Assault and kidnapping. Assault with a gun and a bourbon and a sports car. We'll get them.
The Professor: War is hell, Mr. Thornhill, even when it's a cold one.
Roger Thornhill: When I was a little boy, I wouldn't even let my mother undress me.
Eve Kendall: Well, you're a big boy now.
Roger Thornhill: I may go back to hating you. It was more fun.
Roger Thornhill: How does a girl like you get to be a girl like you?
Eve Kendall: Lucky, I guess.
Roger Thornhill: Now, what can a man do with his clothes off for twenty minutes? Couldn't he have taken an hour?
Eve Kendall: You could always take a cold shower.
Eve Kendall: While I'm calling, you can change your clothes.
Roger Thornhill: Where do you propose I do that? In Marshall Fields' window?
Eve Kendall: I sort of had the men's room in mind.
Roger Thornhill: Did you, now? You're the smartest girl I ever spent the night with on a train.
Eve Kendall: Patience is a virtue.
Roger Thornhill: So is breathing.
