- Captain Jack Harkness: Being with the Doctor, you don't get to choose when it stops... whether you leave her or... she leaves you.
- The Doctor: And three very special people I've missed.
- Captain Jack Harkness: One of them was me, right?
- The Doctor: You never change.
- Captain Jack Harkness: Wish I could say the same.
- The Doctor: All that time in a cell, wondering who I am. I'm the Doctor. I'm the one who stops the Daleks.
- Graham O'Brien: So you've had dealings with Daleks as well, then?
- Captain Jack Harkness: Yeah, they killed me once, long time ago. No big deal.
- Ryan Sinclair: You look pretty healthy for a corpse.
- Captain Jack Harkness: I know, right?
- Captain Jack Harkness: How many people in the universe get to meet the Doctor, let alone travel with her? We're the lucky ones, Yaz. Enjoy the journey while you're on it. Because the joy is worth the pain.
- The Doctor: Jack, how do you feel about boarding an SAS Dalek ship?
- Captain Jack Harkness: Can I blow it up?
- The Doctor: Yes, please.
- Captain Jack Harkness: My kind of plan. I have Dalek issues.
- Ryan Sinclair: No kidding.
- Captain Jack Harkness: You never forget your first death.
- The Doctor: To billions of people, "Dalek" means hate. Daleks are creatures of hate and aggression. Daleks are insidious, relentless, and clever. And like hate, they will spread if they're not stopped. Never underestimate a Dalek.
- Captain Jack Harkness: You're going to take the moral high ground with me when I'm breaking you out of prison?
- Yasmin Khan: Thanks.
- Captain Jack Harkness: "Thanks". That's it?
- Yasmin Khan: Are you feeling insecure? Because you seem to need a lot of praise.
- Captain Jack Harkness: Do I?
- Yasmin Khan: It felt cruel... To be shown something I couldn't have any more. I felt like.. em.. I'd rather not have known. I'd rather not have met her, cause having met her and then being without, that's worse. How to deal with that?
- Jack Robertson: [finds out that Daleks have taken over a factory and eaten the human workers] This is a PR disaster.
- Ryan Sinclair: I like that whole "Whatever you're doing, we're going to stop you" vibe. Very Doctor-y.
- Yasmin Khan: Didn't work when I do it.
- Jack Robertson: We live in uncertain times. Do you want to win? Embrace the uncertainty. Live in the worry.
- Jo Patterson: I want to expedite our project.
- Jack Robertson: Six of the sweetest words in the English language.