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.

DOCTOR: Kate Lethbridge-Stewart! I remember your father working night and day to keep UNIT secret, and look at you now, out and proud and defending the Earth.

15th DOCTOR: Ah! It's more than that. Our whole lifetime. That Doctor that first met the Toymaker never, ever stopped. Put on trial, exiled, Key to Time, all the devastation of Logopolis.

14th DOCTOR: Adric.

15th DOCTOR: Adric. River Song. All the people we lost. Sarah Jane has gone. Can you believe that for a second?

14th DOCTOR: I loved her.

15th DOCTOR: I loved her. And Rose. But the Time War, Pandorica, Mavic Chen. We fought the Gods of Ragnarok, and we didn't stop for a second… ..to say, what the hell?

14th DOCTOR: But you're fine.

15th DOCTOR: I'm fine because you fixed yourself. We're Time Lords. We're doing rehab out of order.

DOCTOR: Wilfred Mott. Oh, now I feel better. Now nothing is wrong, nothing in the whole wide world! Hello, me old soldier!

WILF: I never thought I'd see you again after all these years. Oh, Doctor, that lovely face! It's like springtime.

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.

FIRST DOCTOR: The Doctor? No, I don't think so! No, dear me, no! You may be a Doctor, but I am the Doctor. The original, you might say!

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: They're not your rescuers. They're your replacements. The end point of capitalism. A bottom line where human life has no value at all. We're fighting an algorithm, a spreadsheet. Like every worker, everywhere, we're fighting the suits.

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: Nothing’s sad until it’s over, and then everything is.

DOCTOR: I can't! Why is it always me? Why is it never anybody else's turn? Can't I just lose? Just this once?

I am the Doctor. I'm coming to find you, and I will never, ever stop.

DOCTOR: As you come into this world, something else is also born. You begin your life, and it begins a journey towards you. It moves slowly, but it never stops. Wherever you go, whatever path you take, it will follow. Never faster, never slower, always coming. You will run. It will walk. You will rest. It will not. One day, you will linger in the same place too long. You will sit too still or sleep too deep, and when, too late, you rise to go, you will notice a second shadow next to yours. Your life will then be over.

DOCTOR: If you think because she is dead I am weak, then you understand very little. If you were any part of killing her, and you're not afraid, then you understand nothing at all. So, for your own sake, understand this. I am the Doctor. I'm coming to find you, and I will never, ever stop.

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

DOCTOR: You're doing it again.

CLARA: Doing what?

DOCTOR: The smile.

CLARA: Yeah, I'm smiling.

DOCTOR: It's the sad smile. It's a smile but you're sad. It's confusing. It's like two emotions at once. It's like you're malfunctioning.

PERKINS: You know, Doctor, I can't tell if you're a genius or just incredibly arrogant.

DOCTOR: Well, ah, on a good day, I'm both.

DOCTOR: Sometimes the only choices you have are bad ones. But you still have to choose.

WAR DOCTOR: You're my future selves?

TEN & ELEVEN: Yes!

WAR DOCTOR: Am I having a midlife crisis? Why are you pointing your screwdrivers like that? They're scientific instruments, not water pistols. Look like you've seen a ghost.

DOCTOR: I've had many faces, many lives. I don't admit to all of them. There's one life I've tried very hard to forget. He was the Doctor who fought in the Time War, and that was the day he did it. The day I did it. The day he killed them all. The last day of the Time War. The war to end all wars between my people and the Daleks. And in that battle there was a man with more blood on his hands than any other, a man who would commit a crime that would silence the universe. And that man was me.

ELEVENTH DOCTOR: I could be a curator. I'd be great at curating. I'd be the Great Curator. I could retire and do that. I could retire and be the curator of this place.

CURATOR: You know, I really think you might.

ELEVENTH DOCTOR: Okay. Gentlemen, we're ready. Geronimo!

TENTH DOCTOR: Allons-y!

WAR DOCTOR: Oh, for God's sake. Gallifrey stands!

CLARA: Be a doctor. You told me the name you chose was a promise. What was the promise?

TENTH DOCTOR: Never cruel or cowardly.

WAR DOCTOR: Never give up, never give in.