Adric: So, what is a railway station?
The Doctor: Well, a place where one embarks and disembarks from compartments on wheels drawn along these tracks by a steam engine - rarely on time
Nyssa: What a very silly activity.
The Doctor: You think so? As a boy, I always wanted to drive one.
Tegan Jovanka: It's fancy dress, isn't it?
Charles Cranleigh: Yes.
Tegan Jovanka: Well, we haven't got any costumes.
Sir Robert Muir: Oh. I was just thinking how charming yours was.'
Charles Cranleigh: Well, Doctor, how would you like to take a cocktail to your bath?
The Doctor: Well, certainly a cold drink.
Adric: [dumbfounded] What do you do with a cocktail in a bath?
Charles Cranleigh: Drink it, old boy.