DOCTOR: You know, I used to tell people I walked in Eternity. And the thing about Eternity is, well—it does go on.

CHERRY: I've given up on that cuppa and opted for a life of abstinence.

DOCTOR: It's not magic. It's a language. It's a different form of physics.

RUBY: Yes. Like magic.

DOCTOR: This is a brand new science for me, and I love it. The language of luck. Cos what is a coincidence but a form of accident? Two things bumping together unexpectedly. Like you and me.

DAVINA: Bad luck. Ever since that day, it's never stopped. I've been hit, I've been thrown, I've been bumped. I fell off a boat on dry land. I've been in accidents, collisions. I've even been trampled by a moose! And I can't help thinking it all comes back to when I met you.

DOCTOR: Oh! Pssh! They are not time travellers. Excuse me. Time travellers are great. Like the best. Like, wow. This lot just bimble.

DOCTOR: Okay. Name - the Doctor. Occupation - not a doctor. Current status - just passing by. Employer - myself. Address - that blue box over there. Now, if you don't mind, I just got snowmanned, and I would like to go home.

Yes, thought Kate Lethbridge-Stewart, maybe I am a Nepo Baby. She’d grown up watching her father save the world. Well, she would have done if he’d ever been around. But he’d been too busy. Saving the world. It had been a strange childhood. Spent waiting for glimpses of him. That tired smile on his face after a long day. Patiently listening to her excited babble about finger painting while he’d been – well, she’d read the files. Gel guards. Axons. Devil Goblins from Neptune.

Once he was down to pick her up from school. Late, of course. She’d been standing alone at the gates, bored as ever, and glancing around to make sure no one saw him roar up in a military jeep. Instead, it had been a yellow clown car driven by a wizard. ‘You should never get in cars with strangers,’ he’d told her as she’d got in. ‘But Alistair’s a bit busy.’ Funny, hearing her father’s name. She pulled the face. She’d spent her whole life being told her father was a bit busy.

They’d roared off down the road, the man next to her smiling and talking and somehow passing her a bag of sweets while holding his hat on his head. ‘Little bit of a problem with giant cockroaches and Didcot power station,’ the man had laughed. ‘Can’t be bothered with that. So I said I’d drop you off at Ballet Class. Which I absolutely can, of course.’ A pause, and a friendly wickedness lit up his features. ‘Or … we could go dancing with Anna Pavlova?’ And that had been the first time Kate Lethbridge-Stewart had met the Doctor. Now she’d inherited the family firm. Holding the world together with duct tape and the most brilliant people she could find. Just in case, this one time, the Doctor didn’t turn up and do what he did best.

Save. The. World.

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.

DAN LEWIS: I've only been back a month, and I've got to say, I'm glad I'm not on the verge of being exterminated any more. But I do miss her.

IAN CHESTERTON: Sorry. Did you say her?

SIXTH DOCTOR: Angel to the left of us, angel to the right

TENTH DOCTOR: Here I am, stuck in the middle with you

TASLO: So, what’s the plan?

DOCTOR: The plan is… that we’re going to improvise.

TASLO: That’s kind of the opposite of a plan.

DOCTOR: Precisely. A plan means we’re being predictable. If we’re going to uncover what the council is really up to… best if they can’t follow what we’re doing.

GOLD DALEK COMMANDER: The Daleks have come for your archive.

CHIEF ARCHIVIST: Do you wish to apply for a membership card?

GOLD DALEK COMMANDER: You will surrender the archive to me.

MASTER: I wish it wasn't true, but it is. You know what I find the most infuriating? You always behaved like you were different, like you were... like you were special. And you were. You can see... you can see why I'm angry. A little piece of you is in me. All I am is somehow because of you, and believe me when I say, I cannot bear that.

MASTER: Look upon my work, Doctor, and despair. Remember how we used to run through those streets as children? The alleys where we'd hide from Borusa as we skipped classes? All gone now. Come on, ask me why I did this.

DOCTOR: Why did you do this?

MASTER: Not telling you. (laughs) Oh, crack a smile.

DOCTOR: Proud of yourself?

MASTER: Definitely.

DOCTOR: All this death finally made you happy?

MASTER: Ecstatic.

DOCTOR: And has it calmed all the rage?

MASTER: I don't think anything will ever do that.

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.

DOCTOR: Never be cruel. Never be cowardly. Hate is always foolish. Love is always wise. Always try to be nice, but never fail to be kind.

DOCTOR: Winning? Is that what you think it's about? I'm not trying to win. I'm not doing this because I want to beat someone, or because I hate someone, or because, because I want to blame someone. It's not because it's fun and God knows it's not because it's easy. It's not even because it works, because it hardly ever does. I do what I do, because it's right! Because it's decent! And above all, it's kind. It's just that. Just kind. If I run away today, good people will die. If I stand and fight, some of them might live. Maybe not many, maybe not for long. Hey, you know, maybe there's no point in any of this at all, but it's the best I can do, so I'm going to do it. And I will stand here doing it till it kills me. You're going to die too, some day. How will that be? Have you thought about it? What would you die for? Who I am is where I stand. Where I stand, is where I fall. Stand with me. These people are terrified. Maybe we can help, a little. Why not, just at the end, just be kind?

DOCTOR: We’ll have the door open in a jiffy.

LIV: Except we still don’t know what’s out there.

HELEN: Please be careful!

DOCTOR: Are you scaredy cats?

HELEN: No

LIV: Just sensible

DOCTOR: Oh come on, we could sit here all day being sensible, we’d still be here next week, filling out risk assessment forms. And how boring would that be?

RIVER: Does sarcasm help?

DOCTOR: Wouldn't it be a great universe if it did?

DOCTOR: My entire understanding of physical space has been transformed! Three-dimensional Euclidean geometry has been torn up, thrown in the air and snogged to death! My grasp of the universal constants of physical reality has been changed forever!

DOCTOR: Sorry. I've always wanted to see that done properly.

DOCTOR: I've finally run out of corridor. There's a life summed up.

DOCTOR: Do you know what thinking is? It’s just a fancy word for changing your mind.

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?