Oliver Queen: I spoke to Laurel.
Felicity Smoak: When did she become Laurel? She's not Laurel. Not "Laurel" Laurel. She's not our Laurel, okay? Not...
Oliver Queen: Okay, Felicity, I'm... I can't pretend to understand parallel worlds. But if I'm going to believe in them, and... and I kind of have to now, then I need to believe that differences are caused by circumstances. So why can't we change this Laurel's circumstances?
Felicity Smoak: You think that you can save her? After she's thrown in with Prometheus?
Oliver Queen: Under duress. I just... I think I can reach her.
Felicity Smoak: When did you find the time to get a PhD in psychology?
Oliver Queen: I'm a quick study.