[Given a detective's gold badge] Frank Serpico: What's this for? For bein' an honest cop? Hmm? Or for being stupid enough to get shot in the face? You tell them that they can shove it.
Frank Serpico: The reality is that we do not wash our own laundry - it just gets dirtier.
Frank Serpico: How come all your friends are on their way to bein' someone else?
Frank Serpico: You know what they say, don't you? If you love a man's garden, you gotta love the man!
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?
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.
Leslie Lane: [feeling his gun as she's riding on the back of his motorcycle] What'ya need a gun for? Frank Serpico: Didya ever hear of Barnum and Bailey? Leslie Lane: Yeah. Frank Serpico: Well, I'm their lion tamer.
Cop: Say it isn't so, Serpico.
Frank Serpico: I own a sheep dog. Girl: Uh-huh. Frank Serpico: Sheep dogs have been in my family... for sixteen generations! Dating back to the Borgias... Girl: [laughing] Oh, shit! Frank Serpico: The family crest... is the image of a sheep dog, piss...
Frank Serpico: [Screaming repeatedly] It's my life you fuck!
Frank Serpico: You know that I'm totally isolated in the department. I don't have a friend. Chief Sidney Green: Oh, don't give me that bullshit about friends. I've been putting cops away for thirty years. My name's an obscenity to every shithouse wal...
Rudy Corsaro: [being arrested by Serpico, who's having trouble finding his badge] Where have they been hidin' you, kid? Frank Serpico: Wouldn't you like to know?
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?
Gun shop owner: That gun takes a 14 shot clip. You expecting an army? Frank Serpico: No. Just a division.
Tom Keough: Drop your cocks and grab your socks!
Don Rubello: [looking suspiciously at Frank's mouse] What's with the fucking mouse? Frank Serpico: He's my partner. He sniffs out drugs. You know, I just send him through his little hole, he's gone for a while, and then he comes back with the heroin....
Bob Blair: [to Frank] Who the fuck do you think you are, you son of a bitch? You think you have it bad just because those bastards won't play ball?
Cop: [to Frank] All right, you cocksucker. You might get by with that shit in the Bronx, but down here, eight thousand a month is chicken feed. And with that, you don't fuck around. You understand? Good. Now get the fuck out.
