Your incompetence has now cost me four lives, Alderman. Fail me again, and yours will be the fifth.

Five years ago I made a promise. Do you remember? Well I'm here to fulfill it. See you around kid.

Slade: Don't worry. I am not here to harm you.
Laurel: Go to hell.
Slade: All in good time, I'm sure. But before then, I've come to Starling City to see Oliver Queen suffer.
Laurel: Oliver? What?Why?
Slade: Because he's not the man you think he is.
Laurel: How would you know that?
Slade: Because I know Oliver Queen is The Arrow.

Moira: There's only one way this night can end and we both know that, don't we, Mr. Wilson?
Oliver: Mom!
Moira: Please tell me both my children will live.
Thea: Mom! What are you doing?! Mom!
Moira: Thea, I love you. Close your eyes baby!
Oliver: NO!
Slade: You possess true courage. I am truly sorry you did not pass that on to your son.

Slade: That's a particularly firm handshake you have there son.
Roy: Yeah, you too.

The Mirakuru isn't what made me hate you! The end is near, but maybe I'll be merciful enough to let you live and see your city burn!

Sebastian Blood: You know who he is under that hood, don't you?
Slade: I know exactly who he is. He's my friend.

You know when we first tried to get off this island it was as strangers; but now it's as brothers.

You cannot die until you have suffered the same way that I have suffered, until you have known complete despair -- and you will. I promise.

Slade: You and I have something in common.
Moira: What's that?
Slade: I know how difficult it is to pick yourself up when other people have written you off.

Oliver: Oh you psychopath! Shado...Shado wasn't yours!
Slade: No. She was yours. Until you chose another woman over her!

I will arrange for you receive another sample of my blood, and then you can begin to mass produce the serum again.When I ask you not to confront the vigilante, you will listen. Remember, your mask can be worn by another.

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