- Persuasion: He does not conform.
- Monarch: Of course. He's a philosopher. A doubter. We need doubt. It's the greatest intellectual galvanizer.
- Adric: Look, we're fifth dimensional in this thing, he'll get you on your flight if he's out there a week.
- Tegan: And what do we do in the meantime?
- Adric: Well you could always read.
- Tegan: Read?
- Adric: Yes, there's a fascinating book on maths through there by a chap called Bert Russell.
- Tegan: Maths?
- Adric: That's the trouble with women, mindless, Impatient, and bossy.
- Tegan: You chauvinist, I heard that.
- Adric: You were meant to.
- Nyssa: I heard it too. You mean this?
- [Holds up the aforementioned book]
- Nyssa: Mindless!
- Adric: Well yes, but you're not a woman.
- Nyssa: I'm not?
- Adric: No, you're only a girl.