Frank Serpico: You know what they say, don't you? If you love a man's garden, you gotta love the man.
Larry: Leslie is a mindfucker.
Frank Serpico: You gotta be kidding. I didn't know that. What's a mindfucker?
Larry: Well, it's a chick who digs intellectual types and super bright guys.
Frank Serpico: Oh, she's very perceptive.
Frank Serpico: You know, you're pretty fuckin' weird for a cop.
Bob Blair: Me? What about you? You're a fucking hippie.
Frank Serpico: How come all your friends are on their way to bein' someone else?
Tom Keough: Now I ain't sayin' who. They just said ya'... ya' couldn't be trusted, you know?
Frank Serpico: 'Cause I don't take money, right?
Tom Keough: Frank, let's face it. Who can trust a cop who don't take money?
Frank Serpico: I'm a marked man in this department. For what?
District Attorney Tauber: I've already arranged a transfer for ya'.
Frank Serpico: To where? China?
Gun shop owner: That gun takes a 14 shot clip. You expecting an army?
Frank Serpico: No. Just a division.
Frank Serpico: You stupid fuck! You didn't know me? You fired without a warning, without a fucking brain in your head? Oh, shit. If I buy one, motherfucker, I ain't buying it from you.
Frank Serpico: Hey, Pasquale, let me tell you something. See, all day long I work with cops, right? When I go out, I see Mary Ann. Her father is a cop, her brother is a cop, her uncle is a cop and I got a feeling she's a cop too.