DAN LEWIS: I've only been back a month, and I've got to say, I'm glad I'm not on the verge of being exterminated any more. But I do miss her.

IAN CHESTERTON: Sorry. Did you say her?

JAMIE: Doctor, come on, will ye? The whole place is going to blow up.

DOCTOR: Oh, it's quite all right, Jamie. The planet is quite safe. There's just going to be a localised volcanic eruption. It'll only affect the island.

JAMIE: Maybe so, but we happen to be on the island.

DOCTOR: Oh, my word!

DOCTOR: You know, I am so constantly outwitting the opposition, I tend to forget the delights and satisfaction of the arts, the gentle art of fisticuffs.

DOCTOR: One day, I shall come back — yes, I shall come back. Until then, there must be no regrets, no tears, no anxieties. Just go forward in all your beliefs, and prove to me that I am not mistaken in mine. Goodbye, Susan, goodbye, my dear.