ZENTOS: Doctor, for the fact that I mistrusted you, misjudged you, I'm sorry.

DOCTOR: Remember your journey is very important, young man, therefore you must travel with understanding as well as hope. Goodbye, Zentos.

ZENTOS: Goodbye Doctor.

STEVEN: That the nature of man, even in this day and age, hasn't altered at all. You still fear the unknown, like everyone else before you.

DODO: The statue. They've finished the statue.

(But the head of the statue isn't human, it's Monoid.)

DOCTOR: Oh, do blow your nose, child. It’s running all over the place.

DODO: No, it isn’t. I’m crying this time.

DODO: Doctor, Steven, get a look at these fab pictures!

DOCTOR: Ah, fab, hmm. My dear child, if you’re going to be with us for any length of time, you’ll have to do something about that English of yours.

DODO: What’s wrong with it?

DOCTOR: It’s terrible, child. Oh, it’s most irritating.

DODO: Oh, you’re not going to send me home, are you?

DOCTOR: Home? Ho, ho! What an idea. I couldn’t send you home even if I wanted to.

DODO: Oh, that’s all right, then. I think I’m beginning to enjoy this space travel or whatever it is.

DOCTOR: Well open your eyes, my dear child, otherwise you won’t be any use to me, will you?

DODO: Okay.

DOCTOR: What did you say?

DODO: I said, okay.

DOCTOR: Yes, I thought you did. Now once this crisis is over, I’m going to teach you to speak English.

DODO: It’s nothing to worry about. His temperature’s a bit high, that’s all. It’s just a fever. It can only be a cold.

DOCTOR: Do you realise what this means, dear boy?

STEVEN: What’s all the fuss about? The man’s caught Dodo’s cold, that’s all.

DOCTOR: All? All? These people, this generation, have never experienced the common cold for the simple reason it was wiped out many generations ago before they were born. They have no resistance to it.