DOCTOR: This world is uninhabited. Nobody lives here and – so far – nobody has ever lived here. There’s wildlife, yes, but nobody that could look up and say, “Look at those five stars over there. They remind me of that weird fish I saw in the river the other day.

RUBY: They don’t look anything like a fish. They look like a slipper.

DOCTOR: That’s something else that hasn’t happened before

RUBY: What?

DOCTOR: People arguing about what’s right in front of them. Next one of us will start a religion worshipping the Great Fish of the Stars and the other will declare themselves a follower of the Celestial Bedsock and, before we know it, the world’ll go to hell in a handbag

RUBY: But hold on. I can't call you Doctor. No, I want to know your name.

DOCTOR: Yeah, that's er... that's tricky, because I was adopted, and the planet that took me in, they were kind of... they were kind of posh. They'd use titles like the Doctor, or the Bishop, or the Rani, or the Conquistador. Say Doctor for a thousand years and it becomes my name.

DOCTOR: Yeah, but I've met a million ugly bugs. I'm an ugly bug.

DOCTOR: And do you want to know my secret? There's no one like me in the whole wide universe. No one like me exists, and that's true of everyone. It's not a problem, Captain Pops. It's a superpower.

POPPY: We're not meant to be like this. Did we grow up wrong?

DOCTOR: Oh, Poppy. Oh, Popsicle. Look at me. Look at me. Nobody grows up wrong. You are what you are, and that is magnificent.

FLOOD: Oh, Merry Christmas, Abdul. Stop making such a fuss. Never seen a TARDIS before?

DALEK: Your appearance corresponds with the Time Lord known as "The Doctor". You are the enemy of the Daleks!

DOCTOR: It's the first line on my CV. Current Employment - The Oncoming Storm.

MASTER: That's right, you tell me. And Ace! Or should I say Dorothy? Didn't the Doctor ditch you? No? Little fallout with your Machiavellian maestro?

ACE: Last time I saw you, you were half cat.

MASTER: A man's allowed to experiment.

KO SHARMUS: You can be a pacifist tomorrow. Today, you have to survive.

KANE: You can't build an ionic membrane from scratch.

DOCTOR: If I had crayons and half a can of Spam, I could build you from scratch.

FIRST DOCTOR: There is good and there is evil. I left Gallifrey to answer a question of my own. By any analysis, evil should always win. Good is not a practical survival strategy - it requires loyalty, self-sacrifice and love. And so, why does good prevail? What keeps the balance between good and evil in this appalling universe? Is there some kind of logic? Some mysterious force?

BILL: Perhaps it's just... a bloke.

FIRST DOCTOR: A... bloke?

BILL: Yeah! Perhaps it's just some bloke, wandering around, putting everything right when it goes wrong.

FIRST DOCTOR: Well, that would be a nice story, wouldn't it?

BILL: That would be the best.

MISSY: Well, I am that mysterious adventurer in all of time and space, known only as Doctor Who. And these are my disposables, Exposition and Comic Relief.

RAM: What about football?

DOCTOR: Unbelievably boring sport. Now, darts? Darts is something worth practising for. Maths and alcoholic beverages. The best way to spend a morning.

DOCTOR: Oh, come on! Cheer up! It's not that hard. It's no harder than all these exams that you have to take these days. Except for Media Studies. It's going to be harder than that.

RIVER: You have no idea, do you? What you mean to them?

DOCTOR: Me? I’m just passing through, I give people rides, they have fun for the most part when they’re not being captured, shot at, or blown up. But sometimes, sometimes it gets real. I find something that’s too big, too dangerous. And I care about them. I can’t risk their lives. Not them

RIVER: You love them too!

DOCTOR: I can’t afford to let people get attached.

RIVER: It’s lucky I’m here then. As an impartial observer.

RIVER: You don't look much like your pictures.

DOCTOR: Well, that's an ongoing problem for me.

DOCTOR: You look, er, amazing.

RIVER: Doctor, you have no idea whether I look amazing or not.

DOCTOR: Well, you've moved your hair about, haven't you?

RIVER: Well done. It's very sweet of you to try.

DOCTOR: It's my back.

RIVER: Your back?

DOCTOR: Yeah, my back's playing up. It simply refuses to carry the weight of an entirely pointless stratum of society who contribute nothing of worth to the world and crush the hopes and dreams of working people.

DOCTOR: You've got the rest of your life. The faster you think, the slower it will pass. Concentrate. Assume you're going to survive. Always assume that. Imagine you've already survived. There's a storm room in your mind. Lock the door and think. This is my storm room. I always imagine that I'm back in my TARDIS, showing off, telling you how I escaped, making you laugh. That's what I'm doing right now. I am falling, Clara. I'm dying. And I am going to explain to you how I survived. I can't wait to hear what I say. I'm nothing without an audience.

MASTER: We go back a long, long way, the Doctor and I. We were at school together, we went out into the universe together. We’ve even killed each other a few times and that always gives you a very special bond with someone.

MASTER: The title you chose: Doctor. Now, it’s not just a man of healing. It means “teacher”. It means “tutor”. Whereas I am a Master. We both want to change the universe, to make it better, it’s only the scale of our ambition separates us.

DOCTOR: What are you saying? You’d like to have been a Doctor but you didn’t have the patients?

DOCTOR: Mr. Renk and I are going to have a very serious talk, and when I've finished with him he's going to wish he'd been born.

BENNY: I think you mean "he's going to wish he'd never been born".

DOCTOR: I know what I mean.

DOCTOR: Charley, C'Rizz, Lucie, Tamsin, Molly. Friends, companions I've known, I salute you. And Cass, I apologise. Physician, heal thyself.

BRAX: I'm sorry, but, have we met?

BENNY: Yes. But perhaps not yet.

BRAX: Ah. Then this is probably going to be one of those awkward converations where we don't know what to say or, what tense not to say it in. Are we going to be friends? I'm sorry, but it's best to be sure of these things.

BENNY: Absolutely. I mean yes. We are going to be friends. You came to my wedding.

BRAX: Will I? Well, how nice. Um, Irving Braxiatel, by the way - oh, but then, of course, you know that.

BENNY: Delighted to meet you. Again. I'm Professor Bernice Summerfield. But as you're definitely going to be my friend, you can call me Benny.