DOCTOR: Think positive. Why do you always assume the worst?

ROMANA: Because it usually happens.

DOCTOR: Empirical poppycock. Where’s your joy in life? Where’s your optimism?

ROMANA: It opted out.

ROMANA: I see. So where are we going?

DOCTOR: Going? I don’t know.

ROMANA: You have absolutely no sense of responsibility whatsoever.

DOCTOR: What?

(Romana backs him up against a wall, poking him with every word)

ROMANA: You’re capricious, arrogant, self-opinionated, irrational, and you don’t even know where we’re going.

MEL: Well what about your chemistry a-level, then?

ACE: That's no good. I got suspended after I blew up the art room.

(Mel laughs)

MEL: You blew up the art room?

ACE: It was only a small explosion! They couldn't understand how blowing up the art room was a creative act!

ALLISON: I wish Bernard was here.

RACHEL: The British Rocket Group's got it's own problems.

(Gilmore grumbles)

IAN: I just feel we should be doing something.

RACHEL: Frankly, I wouldn't advise it, Group Captain. We're in way over our heads.

IAN: You were hired as a Chief Scientific Advisor. One tends to expect advice from ones advisers.

RACHEL: For one thing, Group Captain, I was not hired, I was drafted. And for another, do you think I am enjoying having some space vagrant come along and tell me that the painstaking research I have devoted my life to has been superseded by a bunch of tin-plated pepperpots?

IAN: Steady on, Professor.

RACHEL: Steady on? You drag me down from Cambridge, you quote the Peace Time Emergency Powers Act at me, and then you expect me to advise on something outside the realm of human experience! Bluntly, Group Captain, we're reliant on The Doctor because only The Doctor knows what is going on.

ALLISON: A matter transmitter? But that's impossible.

RACHEL: Impossible. You know after this, I'm going to retire and raise begonias.

TV ANNOUNCER: This is BBC television. The time is a quarter past five and Saturday viewing continues with an adventure in the new science fiction series, Doc-

ACE: Professor I'm hungry! Lack of food makes me hungry, you know.

DOCTOR: Lack of food makes you obstreperous.

ACE: These dayleks-

DOCTOR: Daleks.

ACE: Oh, Daleks, where are they from?

DOCTOR: From Skaro, at least originally. They're the mutated remains of a species called the Kaleds. Left here.

(The Doctor points left)

ACE: When were they left here?

DOCTOR: No, turn left here!

ACE: Oh, right.

DOCTOR: No, left, you missed the turning.

ACE: What turn? Where?

(Ace looks from side to side)

DOCTOR: Why don't you concentrate on where you're going!

ACE: Look I'm doing the best I can, if you don't like it you drive!

(Screen goes dark as they drive under a bridge. When we next see them they've swapped places)

DOCTOR: You destroyed it.

ACE: I aimed for the eyepiece.

DALEK: Small human female sighted on level three.

ACE: Who you calling small!

(Ace proceeds to bash the dalek with her baseball bat, knocking off the eye stalk)

ALLISON: What are you going to do after all this is all over?

RACHEL: Retire to Cambridge and write my memoirs.

IAN: (distantly) Professor!

RACHEL: Subject to security vetting, of course.

ALLISON: Doctor, how do you do that?

THE DOCTOR: Do what?

ALLISON: How do you just rewire a piece of alien machinery?

THE DOCTOR: It's easy, when you have 900 years experience.

ALLISON: What happened?

(Begins examining the Corporal's head)

CORPORAL: Sergeant Smith...

RACHEL: Is he all right?

ALLISON: No idea, I'm a physicist.

THE DOCTOR: He'll be fine! Rachel and Allison, I need your help.

RACHEL: (slightly incredulous) Sorry?

ALLISON: He said he needed our help.

RACHEL: That's what I thought he said. Get your hands off his scalp and come on!

ACE: Ace.

TREVOR SIGMA: No nicknames, aliases, pseudonyms, nom de plumes, real names.

ACE: It is my real name! Tell him, Professor.

NEANDER: A friend of yours, Leela?

LEELA: Yes, this is Narvin, my... Narvin.

(Ace scoffs)

ACE: Don't want it looking like I've been hanging around waiting for her to come in. Which I have. But, she doesn't need to know that. Because that would look desperate... And I'd rather not look desperate.

ACE: Funny old thing, memory. There are times when you're caught, suddenly, by a picture of a place you went to years ago, or a feeling from when you were much younger. And then there's those places and people that, for whatever reason, have disappeared completely. Places and people that mattered to you once, but now you wouldn't be able to put a name to a face if your life counted on it.

ACE: I'm back in London right now, trying to work out what to do next. I was travelling for a while. Nowhere special — not really. Nothing memorable, at any rate. Just, here and there, yknow. Not sure why I bothered, really. In the end I'm a Londoner at heart. I'll always come back here, and I'll always be glad that I'm back.

ACE: Sometimes I wonder why it is that I always like to be keeping an eye on what's going on around me. It's not like I'm a secret agent or anything... I wish! I think I'd be good at that kinda thing.

NARVIN: And as for my beloved Leela...

(Narvin chuckles)

NARVIN: Beloved. Don't let her hear that, Narvin.