See how easy it is to think first and kill people later?

Anatoly

Oliver: Go to hell.
Adrian: I've already been there Oliver and I've come back with a message for ya.

Malcolm Merlyn, CEO of Merlyn Global Group.
Anatoly. Anatoly, Gangster.

Malcolm

Russian man: You said if we kill you, we kill ourselves, why?
Oliver: You'll find out soon enough.
Russian man: No, I'll dig that bullet out of you right now.

145 seconds. That's how long my father suffered under the water before he suffocated.

Adrian

Adrian: What you been doing?
Rene: I'm going to kill you ... in ways it will hurt.

What's your toy doing?

Dinah

That's a hell of a city you got here, district attorney's a serial killer?

Dinah

Adrian: Mr Mayor, I didn't think you'd be joining us this morning. Guess you know what I've been working on?
Oliver: Yeah.

Oliver: So, you're not going to tell me who it is.
Talia: Of course I will, Oliver, because I want you to suffer. He calls himself Adrian Chase.

You killed his father and I helped him in the pursuit of vengeance because by then, you killed mine.

Talia

Student: Who are you?
Oliver: I'm her former student.
Student: Former - which means you are not welcome here.

Arrow Quotes

There are people in this world who deal only in extremes. It's naive to think that anything less than extreme measures will stop them.

Amanda

Do you remember what you told me? It takes a monster to kill a monster.

Flashback Oliver