Quote from Rosa in the episode Skyfire Cycle
Amy: Oh, Captain, I know you don't want to talk about Monty Hall, but I did contact a math professor-
Captain Holt: No need, Santiago. It's all good.
Amy: So the fight with Kevin is over?
Captain Holt: Yep.
Amy: Because you understand the math now?
Captain Holt: Nope.
Rosa: Because you guys-
Captain Holt: Yep.
Rosa: Knew it. See, what happened is, your dads had sex-
Amy: Okay, Rosa.
Quote from the episode 9 Days
Rosa: I want to say a few words. When Jason died seven days ago, I didn't give a rat's ass.
Charles: This is your speech?
Rosa: 'Cause I didn't understand why people care so much about their dumb dogs till I got a dumb dog myself. I've only had Arlo for a day and a half, but if anything happened to him, I would kill everyone in this room and then myself.
Gina: Very violent eulogy, I like it.
Quote from the episode Jake and Sophia
Rosa: Hey, you should run. Going to meetings, writing stuff down. You love that nerd stuff.
Amy: Writing stuff down is nerdy? What do you do?
Rosa: I just forget stuff like a cool person.
Quote from the episode The Road Trip
Sergeant Jeffords: Wait, is that a smile I see?
Rosa: Possibly. My immune system is too weak to fight off my smile muscles.
Quote from Captain Holt
Captain Holt: Diaz, Santiago, settle a little tiff that Kevin and I are having.
Kevin: Let's be honest, Raymond, it's not a tiff, it's a row.
Captain Holt: And now it's a scene.
Quote from Captain Holt
Rosa: Come on, sir, the math thing isn't the problem. Night shift's keeping you and Kevin apart. You two just need to bone.
Amy: [chuckles nervously]
Captain Holt: What did you say?
Amy: Don't say it again.
Rosa: I said you two need to bone.
Amy: [whimpers]
Captain Holt: How dare you, Detective Diaz. I am your superior officer! [shouting, five minutes later] Bone! [sternly, ten minutes later] What happens in my bedroom, Detective, is none of your business. [shouting, twenty-one minutes later] Bone?! [calmly, forty minutes later] Don't ever speak to me like that again.