VICKI: That was no risk! I noted, observed, collated, concluded... and then I threw the rock

POLLY: The thing is, it is our world.

DOCTOR: Yes, I know. You're lucky, I never got back to mine.

DOCTOR: Do I look strange or bizarre?

JAMIE: Aye. Well maybe I'm just used to you.

DOCTOR: If you want the human factor, part of it must include mercy

DOCTOR: Oh Jamie, don't touch that control!

JAMIE: I already have.

DOCTOR: Now Jamie. Run. Run! I know what I'm doing. I hope.

CLENT: You've worked with computers, I presume?

DOCTOR: Only when I have to.

JAMIE: How will I know I've got the right one?

DOCTOR: You'll soon know if you haven't got the right one, won't you.

JAMIE: Anyway, as you know the TARDIS has a mind of its own. You know you can’t control it.

DOCTOR: Can’t control it?

JAMIE: No.

DOCTOR: We’ll see about that.

VICTORIA: Doctor, why is it that we always land up in trouble?

DOCTOR: Well, Victoria, it's the spice of life, my dear.

DOCTOR: Are there any ordinary circumstances in space?

DOCTOR: I wish... I wish I believed in wishing wells.

JAMIE: Hey, Doctor, I've just been thinking. What happens if they get the lift going before we get to the top?

DOCTOR: Oh, that's simple.

JAMIE: What?

DOCTOR: We get squashed.

SELRIS: Doctor, do you mean that thing was sent out to attack you and only you?

DOCTOR: Yes, so it seems. It's rather flattering, isn't it.

JAMIE: Oh, what's he doing now?

ZOE: I've no idea. Ask him.

JAMIE: Oh, what's the use? He's got his mysterious face on.

DOCTOR: Oh, dear. What a silly idiot I am.

CARSTAIRS: Still, it is rather worrying not being able to remember things.

SARAH: He talks to himself sometimes because he's the only one who understands what he's talking about.

DOCTOR: It's like finding the remains of a Stone Age man with a transistor radio.

HARRY: Playing rock music?

LEADER: The heart of Voga is almost pure gold. Gold is hostile to our function, therefore Kellman was asked to preserve three animal organisms for this purpose.

DOCTOR: Isn't it wonderful to feel needed, Commander?

BROTON: You admire our technology, human?

DOCTOR: Well, I'm not human, and I've seen better.

DOCTOR: Listen, we're on the edge of a time-space vortex and you're talking in minutes.

SARAH: Oh, I see. What's gone wrong this time?

DOCTOR: Nothing. Nothing at all. What makes you think something's gone wrong?

SARAH: Because you always get rude when you're trying to cover up a mistake.

SARAH: Doctor?

DOCTOR: Hello, Sarah. Nice to be seen again.

SARAH: Oh, Doctor.

DOCTOR: You thought I was dead, didn't you? You're always making that mistake.

All she was sure of was that the magic had failed this time. The Doctor hadn't intended the Tractite to die. He'd tried to prevent it, even at the risk of his own life and hers. But they'd died anyway.