DOCTOR: Oh, Jeff. You bad, bad man. Yaz, this is the sort of stuff about which you would ask yourself, if I set fire to this, will it have explosive and potentially devastating consequences? And the answer is yes.

KARVANISTA: You defile the sacred legacy of my forebears.

DAN: You don't look anything like four bears.

DOCTOR: Did you see their arms, K9? Like Swiss Army knives. If they don’t have cutting equipment in there, I’m a monkey’s uncle.

K9: Query. How would their precise equipment array cause you to be related to a primate?

DOCTOR: I don’t know, marriage, maybe.

DOCTOR: I never make the same mistake twice. Unless it’s for effect.

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: Without hope. Without witness. Without reward.

RAZOR: Do you want the good tea or the bad tea?

BILL: What's the difference?

RAZOR: I call one good, one bad.

BILL: Er, I'll take the good one.

RAZOR: Excellent, positive attitude. Will help with the horror to come.

BILL: What horror?

RAZOR: Mainly the tea.

MISSY: You're probably handsome, aren't you? Well, congratulations on your relative symmetry.

DOCTOR: Oh, look, Bill, it's Nardole. What a lovely surprise. I thought I sent you to Birmingham for a packet of crisps. 


NARDOLE: Yeah, I saw through your cunning ruse. 


DOCTOR: Yes, well, if you will go thinking for yourself. What do you want? 


NARDOLE: I was given strict instructions to keep you at the university. 


DOCTOR: Who by?


NARDOLE: You.


DOCTOR: Well, you're not doing a very good job, are you? I'll overlook it this once. 


NARDOLE: Do you know what this is? 


DOCTOR: If it's not crisps, you're sacked.

DOCTOR: Human progress isn't measured by industry, it's measured by the value you place on a life. An unimportant life. A life without privilege. The boy who died on the river, that boy's value is your value. That's what defines an age. That's what defines a species.

DOCTOR: Ohhh, the Cloister Bell. Always just that little bit too late to be of any real use, aren't you?

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.

LIV: I’ll stay, you know. As long as you need me

DOCTOR: We all need someone. That’s what hope is. Other people.

DOCTOR: There's a horror movie called Alien? That's really offensive. No wonder everyone keeps invading you.

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?

QUELL: So, what are you a doctor of?

DOCTOR: Now, there's a question that's never asked often enough. Let's say intestinal parasites.

DOCTOR: I'm so pleased to finally see you. I'm the Doctor and I will be your victim this evening. Are you my mummy?

DOCTOR: Now, first things first. Be honest. How do I look?

ROSE: Umm... different.

DOCTOR: Good different or bad different?

ROSE: Just...different.

DOCTOR: Am I... ginger?

ROSE: No, you're just sort of... brown.

DOCTOR: Aw, I wanted to be ginger! I've never been ginger!

JACKIE: I'm going to get killed by a Christmas tree!

DOCTOR: Time's in flux, changing every second. Your cozy little world can be rewritten like that. Nothing is safe. Remember that. Nothing.

DOCTOR: Now, don't antagonise her. I love a happy medium.

DOCTOR: (About the TARDIS) The assembled hordes of Genghis Khan couldn't get through that door, and believe me, they've tried.

DOCTOR: You feel that pounding in your heart? That tightness in the pit of your stomach? The blood rushing to your head, do you know what that is? That's adventure. The thrill and the fear, and the joy of stepping into the unknown. That's why we're all here, and that's why we're alive!

DOCTOR: Do you want a dangerous fugitive staying in your flat?

PAUL: Of course not.

DOCTOR: Well then, don’t upset him and he'll be a nice fugitive staying in your flat.