What happens in Russia stays in Russia. Even when it makes no sense whatsoever.

Felicity

Oliver: You need to stay here.
Felicity: You can't just ask me to stay here.
Oliver: I'm not asking. I will come and get you when this is all over.
Felicity: No!
Oliver: Felicityyyy...
Felicity: Not unless you tell me why!
Oliver: Because I need you to be safe.
Felicity: But I don't want to be safe. I wanna be with you and the others. Unsafe.
Oliver: I can't let that happen.
Felicity: Oliver, you're not making any sense.
Oliver: Slade took Laurel because he wants to kill the woman I love.
Felicity: I know, so?
Oliver: So he took the wrong woman.
Felicity: Oh.
Oliver: I love you. Do you understand?
Felicity: Yes.

Every warrior must learn the simple truth -- that pain is inevitable and suffering is optional.

Malcolm

Oliver: John, I don't want to die down here.
Diggle: So don't, Oliver.

Oliver: This guy gets more airtime on the Kardashians.
Thea: Five years on an island and you still know who they are.

Because if half of the stories I've heard about Ra's al Ghul are true and Sara kills his daughter, we all will pay.

Oliver

Oliver: Mom, I know a little something about sacrificing myself for the good of this city. It's what you need to do now.
Moira: I know.
Oliver Good.
Moira: Oliver. I know. I know. I've known since last year, I suppose. The night of the undertaking everything became so clear. It's pretty much the night I stopped sleeping.
Oliver: Before you say anything else...
Moira: There's nothing else to say. Nothing I need to say. Except I could not be more proud.

Felicity: I don't doubt that. I don't doubt that you can beat him, but I'm terrified that you won't kill him because that's not who you are anymore and I am so afraid that Ra's al Ghul is going to use your humanity against you.
Oliver: Felicity, I honestly don't know if I'm a killer anymore, but I do know two things. The first is that whoever I am, I'm someone who will do whatever, whatever it takes to save my sister.
Felicity: And the second thing?
Oliver: I love you.

Oliver: Are you OK?
Felicity: I guess. Old lovers have a way of opening old wounds. Lovers. Sounds creepy no matter how you say it.
Oliver: Felicity, I want you to know that whatever experiences you had to go through, I'm glad that you did to shape the person that you are today. And you know how I feel about her.

Because of the life that I lead, I just think it’s better to not be with someone that I could really care about.

Oliver

We've been calling him Deathstroke.

Waller

It's The Arrow that matters. The man under the hood isn't important. Can you imagine what it's like to be him? What he has to live with day in and day out? What that's gotta be like? Hey? The least I can do is to a little bit of time for him.

Lance

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

Laurel: Helena, you don't have to do this.
Helena: Yes, I do. Because once you let the darkness inside, it never comes out.