Grace Thomason: You know, I read somewhere that you shot your boyfriend. Three times in the chest, point blank.
Stella Bonasera: That was self-defense.
Grace Thomason: Oh, yeah?
Stella Bonasera: I was a victim, you are a cold-blooded murderer.

Grace Travers: Billy. Who's this?
Mac Taylor: My name is Mac Taylor.
Grace Travers: Have you met my son Billy?
Mac Taylor: I have. You have a good son, Mrs. Travers. You're a very lucky woman.

Hallie on Wheels: [Hallie is one of the roller-derby girls]
[to a little girl in her daycare] Briana, don't hit.

Hammerback: Did you know that, when Egyptian Princesses died, they were not embalmed for several days to prevent necrophilia. The natural degradation of the body made it unappealing even to the most deviant of men. Why someone would want to have sex with a lifeless body in the first place...
Hawkes: Sid?
Hammerback: I mean it's counterintuitive...
Hawkes: Sid? Sid!
Hammerback: What?
Hawkes: You're going to that creepy place again.

Hannah McCray: Is that why you left the police department? To do DNA research that might help identify her?
Mac Taylor: No, I'm helping to develop new techniques in extracting DNA because 1,121 victims still remain unidentified. Those families don't have closure, and... I know what that feels like

Hannah McCray: You lost your wife on 9/11, right?
Mac Taylor: Yes, I did.
Hannah McCray: Did they...? Was she ever...?
Mac Taylor: No, no, she was never identified.
Hannah McCray: Was she the...?
Mac Taylor: Claire. Her name is Claire, and the victims are not just DNA profiles. They have names.
(Hannah grows silent)

Hannah Schnitzler: Perhaps there's someone you want to honor?
Mac: My father
(from video-mail Mac receives from Mr. Lesnick)

Harry: So, it'll probably be around a whole week or so before they can list the apartment on the market?
Flack: Yeah, we usually don't let the realtor show a place until we get the stink of death out of the carpeting. [Flack leaves to go back to her apartment]
Harry: Well, I just thought I'd ask. And the attitude is unnecessary. [Flack turns and gives him a look]

Hawkes: (cuts in on Flack as he questions Pino) Come on. What are you doing? The man just lost his wife.
Flack: He's lying about something.
Hawkes: He's scared, confused.
Flack: And he's your friend, Sheldon, so I understand why you're hearing something different.
Hawkes: There's no doubt Marty's made some mistakes. But I know he loved his wife. He couldn't have killed her.
Flack: Okay, then prove it

Hawkes: (after seeing Danny conclude his therapy early) So what was that?
Danny: What?
Hawkes: Danny, you gotta try way harder if you're gonna get up out of this chair.
Danny: Doc, you know what? I got a policy, buddy. I don't take advice unless I ask for it.
Hawkes: I got a policy, too. I'm always up-front with my friends. And with an injury like yours, you should have been up out of that chair weeks ago. You're not pushing yourself.
Danny: Are you kidding me?! I'd like to give you five minutes of the pain I feel every time I take a step.
Hawkes: Danny, I treated hundreds of trauma patients that would trade places with you in a minute.

Hawkes: (assessing the chemicals from the trashed office) Phosphoric acid, sulfuric acid, hydrochloric acid. He couldn't have kept the keys in the English room?
Danny: Which one of those you think melted this guy's face off?
Hawkes: Hydrofluoric acid. Highly lethal. Trace amounts of this on the skin can dissolve and eat it away without you even knowing it.

Hawkes: (bitingly) You may save my life in here, but you killed my sister. And there's no redemption for that. Not in my book, no matter how hard you try.
Reggie: Don't you want to know what happened?
Hawkes: My sister never had it easy. She got mixed up with drugs, met people like you. I can fill in the blanks, all right? Trust me, I see it all the time.
Reggie: You're wrong, man. Maya was a good woman.
Hawkes: (cynically) Yeah. A good drug addict.
Reggie: No, man, she-she beat that. Maya was already clean when I met her. I wasn't, and she made the mistake of trying to help me.
Hawkes': (surprised) She got clean?
Reggie: Yeah. Listen, man... I was high at the time, right? And we got into a fight. You know I-I had no idea what was happening until it was over, man. I swear, I had no idea, and then I lied to the cops. I told them she got killed by some dealer she was trying to buy drugs from. After that, I was out of control. Took two more lives and ended up here. Man, not a day goes by I don't think about what I did.

Hawkes: (formulating on the board) Silicon Dioxide plus four molecules of hydrofluoric acid produces...
Danny: Oh me, me, me, pick me! (takes a marker and writes on the board).
Hawkes: That's cold, man.
Danny: (has written N(e)R(d)! on the board)

Hawkes: At first, I thought this might have been a postmortem dog bite.
Mac: Those are no canine's canines.
[Danny and Stella question a pedophile about a murder]

Hawkes: Attempted poisoning with antifreeze is simple and is easily mixed in with a sweet drink, but it doesn't exactly scream Russian assassin.