He's back at 21, yeah, but he's not back up here.

Voight

She'd only been in Chicago six months when she got killed.

Voight

No sweat, man. Just keep doing the job.

Ruzek

My ex-fiancee was coming upstairs. I freaked out a little bit.

Ruzek

Someone want to fill me in on the office gossip?

Rixton

Medical Examiner: And that super-nice guy you were engaged to, Adam Ruzek, is he still there?
Burgess: No.
Medical Examiner: Because of you?

Lindsay: You miss us, though, right?
Antonio: I cry myself to sleep every night.

Voight: Don't say a word.
Rixton: I wouldn't mind coming clean.

Torching the place is one way to get out of paying the rest of your lease.

Voight

I'm warning you. Lose the grin, or I will lose it for you.

Halstead

I'm gonna need you to take this $20 or I'm gonna dump you in that garbage can head first.

Atwater

Atwater: How the hell does a girl get checked in for rounds 24 hours after she dies?
Lindsay: Someone's lying their ass off.

Chicago PD Season 4 Quotes

You don't have to blow smoke. All hands on deck means all hands. I'll coordinate with News Affairs. We've got to get this bastard before he hurts someone else.

Platt

Voight: He's baiting you.
Lindsay: No he's not. He's using me to get under your skin and it's working.
Voight: You make one mistake with Yates, you're dead. You get that?
Lindsay: If he wanted me, he would have had me in upstate New York.
Voight: Well he's not getting a second chance.
Lindsay: Hank, if I'm bait, let me be bait.