The Untouchables

[chasing a knife-armed thug out of his house with a shotgun] Isn't that just like a Wop? Brings a knife to a gunfight! Get outta here, you Dago bastard! Go on, get your ass outta here!

I want you to get this fuck where he breathes! I want you to find this Nancy-boy Eliot Ness, I want him dead! I want his family dead! I want his house burned to the ground! I wanna go there in the middle of the night and I wanna piss on his ashes!

[to Ness] Welcome to Chicago. This town stinks like a whorehouse at low tide.

You just fulfilled the first rule of law enforcement: Make sure when your shift is over, you go home alive.

I have foresworn myself. I have broken every law I have sworn to uphold, I have become what I beheld and I am content that I have done right!

[to Ness, preparing for the liquor raid at the border] Take it easy...take it easy! It'll all happen in time. This is the job. Don't wait for it to happen. Don't even want it to happen. Just watch what does happen.

What are you prepared to do?

[about finding a team member not under Capone's influence] If you're afraid of getting a rotten apple, don't go to the barrel. Get it off the tree.

That's the second rule of police work. If you want to keep a secret, don't tell the boss.

[When asked about if a cop is trustworthy] Well, he'd better be - he's my cousin.