Oliver: They're calling you Deathstroke.
Slade: That's a bit flamboyant. I like it.

Well, I told a guy the truth and he got struck by lightening. To be fair, it probably won't happen again. Statistically.

Felicity

Why is it so hard for everyone to just tell the truth?

Thea

Laurel: No! You're not a killer.
Canary: You don't know who I am Laurel, not really.
Laurel: Then show me.

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

Oliver sure does like to dress up his girls.

Huntress

I don't understand! What is so special about me?

Laurel

Laurel: Are you one of the good guys?
Canary: No, but I'm friends with them.

Sara: What do you guys think?
Felicity: Oh I think if the Huntress shows up you should totally kick her ass.

Oliver: Roy, you're dangerous. I thought I was helping you control it.
Roy: You are. I can't look at a bowl of water without slapping it.

That's why you called me Speedy. I thought you were trying to give me a nickname. For the record, don't call me Speedy.

Roy

We've been calling him Deathstroke.

Waller

Arrow Quotes

There is a prophecy. The man who doesn't perish at the blade of Ra'a al Ghul will become Ra's al Ghul. Ra's al Ghul doesn't offer, he orders. Oliver! Don't delude yourself into thinking you have a choice.

Malcolm

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