PERI: I only hope it believes you.

DOCTOR: Well, if it doesn't, I shall beat it into submission with my charm.

PERI: What's that?

DOCTOR: Comet nine oblique one two oblique four four. To you, Halley's comet.

PERI: It's very pretty, but it still doesn't tell me where we are.

DOCTOR: In your sun's solar system, in the year that you would calculate as 1985. I was, in fact, taking you to Earth.

PERI: Bit of an anticlimax after that journey.

DOCTOR: Ungrateful wretch.

PERI: Well, what do you expect, applause?

DOCTOR: A little gratitude wouldn't irretrievably damage my ego.

PERI: Come off it, Doctor. No one is more surprised than you that we came through it.

DOCTOR: It didn't go very well, did it?

PERI: Earth's safe. So is history and the Web of Time.

DOCTOR: I meant on a personal level. I don't think I've ever misjudged anybody quite as badly as I did Lytton.

DOCTOR: I suddenly feel conspicuous.

PERI: I'm not surprised in that coat.

PERI: Look, Doctor, do you really think you're up to this? I mean, you've only recently regenerated and yet you've undertaken so much work.

(The Doctor takes a bite from her apple and continues.)

PERI: Well, what I really mean to say is, you still seem a little unstable.

DOCTOR: Unstable? Unstable? Unstable! This is me, Peri. At this very moment I am as stable as you will ever see me.

PERI: Oh dear.

DOCTOR: You must forget how I used to be. I'm a Time Lord. A man of science, temperament and passion.

PERI: And a very loud voice.