- Prof. Emilia Rumford: Doctor, did I understand you correctly: That thing is made of stone?
- Doctor Who: Yes-yes, and it's closing in on us fast.
- Prof. Emilia Rumford: But it's impossible.
- Doctor Who: No it isn't. We're standing still.
- Prof. Emilia Rumford: Doctor?
- Doctor Who: Yes?
- Prof. Emilia Rumford: May I ask you a personal question?
- Doctor Who: Well, I don't see how I can stop you asking.
- Prof. Emilia Rumford: Are you from outer space?
- Doctor Who: No.
- Prof. Emilia Rumford: Oh.
- Doctor Who: I'm more from what you'd call inner time.
- Doctor Who: Now, if they should break through, run as if something very nasty were after you because something very nasty will be after you.
- Prof. Emilia Rumford: Yeah, but what about you?
- Doctor Who: Oh, don't worry about me. I'll be doing plenty of that in any case.
- Doctor Who: You know what they say about hyperspace.
- Prof. Emilia Rumford: No?
- Doctor Who: Ah, they say it's a theoretic absurdity - and that's something I've always wanted to be lost in.
- Romana: [looking at the chambers aboard a 4000-year-old hyperspace ship] Do you think there could be anything alive in any of these?
- Doctor Who: What, after 4000 years, I shouldn't think so. I'll tell you something, if there is still anything alive, it'll be furious at all the delay.