Alex Cabot: An eye for an eye leaves the whole world blind.
[after a father shoots his daughter's rapist/murderer]
Elliot Stabler: I could've stopped him. I should've known what Ray was gonna do.
Olivia Benson: How?
Elliot Stabler: I would have done the same thing.
Olivia Benson: No, you wouldn't.
Elliot Stabler: Well, wait 'til you're a parent.
Olivia Benson: Don't throw that crap at me, Elliot. You made a mistake.
Elliot Stabler: What?
Olivia Benson: You let Ray in.
Elliot Stabler: You're right, I did. He got to me. And now I'm responsible.