I don't like the idea that somebody dangerous is out there. Somebody else. Because, typically, they don't show my level of restraint.

I didn't study Shakespeare at any of the four schools that I dropped out of.

Oliver: Time for a dance?
Felicity: I'm not really feeling like dancing with you, Oliver.
Oliver: I know. And that's why I called him. FYI, they will card him at the bar.

Helena: You won't shoot me. You're not a murder, remember?
Oliver: But you are and if I let you go, that blood will be on my hands. I'm sorry.

Oliver: People are dying, so I would like you to pull your head out of Central City and get back into the game.
Felicity: Sure, just as soon as you pull yours out of your ass.
Oliver: Excuse me?

I am having a sizeable get together for tomorrow evening and there is a better than likely chance it spills into the outdoor pool.

Tommy: You still love her, don't you?
Oliver: It doesn't matter how I feel because what I do, I could never be with her. So you don't have anything to be afraid of she's never ever going to know my secret.
Tommy: It doesn't matter if she knows, I know, and I don't know how to be with Laurel knowing the entire time if she found out who you really are she would choose you.

Oliver: He did lie about who he really was.
Felicity: And what do we do every day?

Roy: I'm going to miss this. I feel like I was just starting to get good at it.
Oliver: You are getting good at it.
Roy: That guy? He said I was just another weapon in your arsenal.
Oliver: Well maybe that's what we should call you, then. Arsenal.

Diggle: I've just never seen you spooked like this before.
Oliver: That should tell you something.

There's no length that I will not go to to avenge Laurel. To stop Darhk from ever hurting anyone again.

Slade's whole plan was to take everything from me. He did. He wins. All that's left is for me to die.

Arrow Quotes

I thought you took that book off your father's dead body. How could he have been so chatty?

Diggle

She was my sister. I couldn't be angry because she was dead. I couldn't grieve because I was so angry, that's what happens when your sister dies while screwing your boyfriend.

Laurel