The Departed quotes

Ellerby: Staff Sergeant Dignam is our liaison to the the undercover department, his undercover work is extensive. He's here to give us his report. Sergeant Dignam.
Dignam: Ok. My people are out there. They're like fuckin' indians. You're not gonna see 'em you're not gonna hear about 'em except from me or Captain Queenan. You will not ever know the identity of undercover people. Unfortunately, this shithole has more fuckin' leaks than the Iraqi Navy.
Ellerby: Fuck yourself.
Dignam: I'm tired from fuckin' your wife.
Ellerby: How's your mother?
Dignam: Good, she's tired from fuckin' my father.

Dignam, Billy

Yes, those. I don't know what they are, you don't know what they are, who gives a fuck.

Ellerby

My theory on Feds is that they're like mushrooms, feed 'em shit and keep 'em in the dark

Queenan