Dr. Anthony Ivo: It's harder than it looks, isn't it? Killing an unarmed man.
Oliver Queen: It seemed pretty easy when you murdered Shado.
Dr. Anthony Ivo: I didn't murder her, Oliver.
Oliver Queen: Ivo, you shot her in the head.
Dr. Anthony Ivo: I gave you a choice! You chose Sara. You blame me, but that's because you can't face your own guilt. I loaded the bullets, yes, I pulled the trigger, but you... you aimed the gun. And you hold yourself responsible. Don't you?
Oliver Queen: Yes. But that doesn't mean I won't kill you.
John Diggle: You got something?
Felicity Smoak: Yeah, an apology. I never should've let you think that you could have prevented what happened to Laurel, not even for a second. I was just dealing with my own guilt for not being there.
John Diggle: You have nothing to be sorry about, Felicity. If I had listened to Oliver and not trusted my brother, Laurel would be alive.
Felicity Smoak: No, you don't know that.
John Diggle: Oliver keeps saying the same thing, except I keep going through this over and over again in my head and it-- It's true. Only thing I don't quite get is how I could have been so blind.
Felicity Smoak: Well, Andy's your brother, you know? We make exceptions for family.
John Diggle: Yeah, and I'm the one constantly telling Oliver not to have a blind spot for family.
Felicity Smoak: And here you are, taking the blame for something that's not your fault. You're just one illegitimate child away from a really awesome Oliver Queen impersonation. But just like we tell Oliver, what happened was not your fault, and Laurel would have wanted you to know that.