- Pangol: How did you get out?
- Doctor Who: Through a hole in the back.
- Pangol: But there isn't one.
- Doctor Who: [hold up sonic screwdriver] There is now.
- Mena: Have you ever experimented with time?
- Doctor Who: Well, yes, but in a purely academic way of no interest to anyone.
- Mena: Earth visitor Hardin thinks that you may be able to help with his experiments.
- Doctor Who: Well, I'd like to...
- Romana: Gallifrey abandoned tachyonics when we developed warp matrix engineering.
- Doctor Who: Yes. There you are. So sorry.