Clara: You're not getting me to talk to your ship. It's probably bonkers.
The Doctor: It's okay, it's okay...
Clara: Arrgh, you're like one of those guys who can't go out with a girl unless his mother approves.
The Doctor: It's important to me you get along. I could leave you two alone together.
Clara: Now you're creeping me out.
Bram Van Baalen: How big is this baby?
The Doctor: Picture the biggest ship you've ever seen. Are you picturing it?
Bram Van Baalen: Yeah.
The Doctor: Good. Now forget it. Because this ship is infinite.
The Doctor: Don't get into a spaceship with a madman. Didn't anybody ever teach you that?
Clara: Why do you have zombie creatures? Good guys do not have zombie creatures! Rule one of storytelling.
Gregor Van Baalen: All right, all right, look. A deal's a deal, you got the girl back. Now cancel the self-destruct.
The Doctor: Ah. Ah. Ha. You know, I've got to tell you, I won't be needing you in my quiz team.
Gregor Van Baalen: What?
The Doctor: There is no self-destruct! Hey? Hey? Hey? Had you going there, boys, didn't I? I just wiggled a few buttons, yeah. The old "wiggly button" trick. And the face, you've got to do the face. "Save her or we all die." I thought I rushed it a bit, but...
Tricky: So you're telling us we're safe?
The Doctor: Ish. Apart from the monsters and the TARDIS reinventing the architecture every five minutes.
The Doctor: Right. You lot wait here. I'll check and see if it's safe. We can only survive for a minute or two in there.
Clara: Umm, what happens if we stay longer?
The Doctor: Our cells would liquify and our skin will start to burn.
Clara: I always feel so good after we've spoken.
The Doctor: Marvelous. Keep this door shut.
Clara: That will not be a problem.
The Doctor: I need to know if you feel safe. I need to know you're not afraid.
The Doctor: The future. Running away with a spaceman in a box. Anything could happen to you.
Clara: That's what I'm counting on. Push the button.