Felicity: Which means I just hacked a federal agency. Kinda makes me a cyber terrorist. Which is bad because I really don't see myself fitting well into Guantanamo Bay.
Oliver: Don't worry Felicity they don't send blondes there.

You know, it's pretty exciting that both of you are such bad asses, but do you think we should be making a plan to stop fires and, oh, I don't know, save your dad?

Oliver: Is there any chance she could have scored the drugs in here?
Tommy: Doubt it. I tried not to hire too many drug dealers.

Oliver: Laurel, do you wanna have dinner, or coffee, or, I don't know...
Laurel: Why?
Oliver: I don't want to be on an island anymore.

Joseph, I understand being alone, but it doesn't give you the right to kill him.

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 was wrong to think that I could have it both ways. To do what I do and have a normal life.

Me being happy isn't what's important right now.

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.

I tried to teach you to obtain your objective without killing!

Tommy: Why should I trust you?
Oliver: Because you always have.
Tommy: Oliver.

Tommy: Trust my dad to run all the smiles out of the room.
Oliver: He did come by and he did try to act a little "dad like."

Arrow Quotes

You know Oliver, somebody once told me that secrets have weight. The more you keep, the harder it is to keep moving.

Diggle

Ra's al Ghul: You tasted death and you wanted more, but the truth is everyone and everything must come to an end. Even for one such as me.
Oliver: Kill me, but spare John Diggle's life. Let him go. I will beg for it.
Ra's al Ghul: You have shown tremendous strength, fortitude, power. No, Mr. Queen. I don't want to kill you. I want you to take my place. I want you to become the next Ra's al Ghul.