“One day, I shall come back — yes, I shall come back. Until then, there must be no regrets, no tears, no anxieties. Just go forward in all your beliefs, and prove to me that I am not mistaken in mine. Goodbye, Susan, goodbye, my dear.”

SARAH JANE: Doctor, you're being childish.

DOCTOR: Well of course I am. There's no point in being grown up if you can't be childish sometimes.

“When did you last have the pleasure of smelling a flower, watching a sunset, eating a well-prepared meal?”

“Courage isn’t just a matter of not being frightened, you know. It’s being afraid and doing what you have to do anyway.”

“We’re all capable of the most incredible change. We can evolve while still staying true to who we are. We can honour who we’ve been and choose who we want to be next. Now’s your chance. How about it?”

“Every great decision creates ripples, like a huge boulder dropped in a lake. The ripples merge and rebound off the banks in unforeseeable ways. The heavier the decision, the larger the waves, the more uncertain the consequences.”

“You can always judge a man by the quality of his enemies.”

“I love humans. Always seeing patterns in things that aren’t there.”

“There are some corners of the universe which have bred the most terrible things. They must be fought.”

“Our lives are different to anybody else’s. That’s the exciting thing. There’s nobody in the universe can do what we’re doing.”

“Happiness is nothing unless it exists side by side with sadness.”

“Oh, the blossomiest blossom. That's the only sad thing. I want to know what happens next. Right, then. Doctor Whoever-I'm-about-to-be. Tag, you're it.”

“Hello, I'm the Doctor! I believe you want to kill me.”

“I tolerate this century, but I don't enjoy it. Have you ever thought what it's like to be wanderers in the fourth dimension? Have you? To be exiles? Susan and I are cut off from our own planet, without friends or protection. But one day we shall get back. Yes, one day. One day.”

“There are worlds out there where the sky is burning, where the sea's asleep, and the rivers dream. People made of smoke, and cities made of song. Somewhere there's danger, somewhere there's injustice, and somewhere else the tea's getting cold. Come on, Ace, we've got work to do!”

KLIEG: Yes, yes, I can see that, but how did you know in the first place?

DOCTOR: Oh, I use my own special technique.

KLIEG: Oh really, Doctor? And may we know what that is?

DOCTOR: Keeping my eyes open and my mouth shut.

“An apple a day keeps the, er... no, never mind.”

“That's the trouble with regeneration. You never quite know what you're going to get.”

“I say, what a wonderful butler. He's so violent.”

DAVROS: The Daleks shall become Lords of Time! We shall become all-

DOCTOR: - Powerful. Crush the lesser races. Conquer the galaxy. Unimaginable power. Unlimited rice pudding, et cetera, et cetera.

“Evil? Your evil is my good. I am Sutekh the Destroyer. Where I tread, I leave nothing but dust and darkness... I find that good!”

“Words matter! One death, one ripple, and history will change in a blink. The future will not be the world you know. The world you came from, the world you were created in won't exist, so neither will you.”

“Cos sometimes this team structure isn't flat. It's mountainous, with me at the summit in the stratosphere, alone, left to choose.”

“I've seen entire species destroyed, civilisations left in ruins. I've witnessed solar systems vanish in the twinkling of an eye. I've seen things that would freeze your blood. So don't threaten me, don't ever threaten me.”

“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?”

“I'm a doctor. But probably not the one you're expecting.”

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

“When people need help, I never refuse.”

“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!”

“I’ve been too methodical recently, I think. Setting coordinates and things, actually deciding where we want to go. I’ve been getting far too safe and predictable these last few incarnations. Do you know I once traveled for centuries without ever knowing where I’d materialize next?”

“I was once a man with a masterplan. I’d seek out injustices, topple governments, all in the name of the greater good. I’d started doing the maths, you see…. This is how evil starts, with the belief that the ends justify the means. But once you start down that road, there’s no turning back. What if you can save a million lives, but you have to let ten people die, or a hundred, or a hundred thousand. Where do you stop?”

DOCTOR: Why are you calling me madam?

YASMIN: Because you're a woman.

DOCTOR: Am I? Does it suit me?

YASMIN: What?

DOCTOR: Oh yeah, I remember. Sorry, half an hour ago I was a white-haired Scotsman.

“Come on, please. Give us this. It's all right, it's me! Stabilise. Come to Daddy. I mean Mummy.”

“Bit of adrenaline, dash of outrage, and a hint of panic knitted my brain back together. I know exactly who I am. I'm the Doctor. Sorting out fair play throughout the universe. Now please, get off this planet while you still have a choice.”

“I have fallen in love with humanity. This world is the ultimate playground. All of the sport, the matches, the medals, the gambling and the anger and the children shackled to their bedrooms with their joysticks and their buttons. You make games out of bricks falling upon other bricks. You are exceptional. And then there are the mind games. Oh, the dating and ghosting, the deceit and the control. You make me dizzy. I am in no hurry to leave this place.”

14th Doctor: You're me.

15th Doctor: No, I'm me. I think I'm really, really me. Oh, ho-ho, I am completely me! Don't just stand there, push!

15th DOCTOR: Look after him, you know? Now, you two, if you don't mind, there is a great big universe out there calling, and I've got to get going. So off you pop, old man.

14th DOCTOR: Oh. You're the old man. You're older than me.

DONNA: Actually, that is true. He's younger because you came after him. So you're the older Doctor.

15th DOCTOR: Okay, kid. I love you. Get out!

“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.”

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?

I.M. FOREMAN: You’ve never been a woman, have you?

DOCTOR: I’m not sure I’ve ever even been a man.

KRAIL: You must come and live with us.

POLLY: But we cannot live with you. You're, you're different. You've got no feelings.

KRAIL: Feelings? I do not understand that word.

DOCTOR: Emotions. Love, pride, hate, fear. Have you no emotions, sir?

KRAIL: Come to Mondas and you will have no need of emotions. You will become like us.

POLLY: Like you?

KRAIL: We have freedom from disease, protection against heat and cold, true mastery. Do you prefer to die in misery?

“All right, all right, I suppose you want to see my pass? Yes, well, I haven't got one. And I'm not going to tell you my name, either. Now you just tell Brigadier Lethbridge-Stewart that I want to see him. Well, don't just stand there arguing with me, man! Get on with it!”

MASTER: Well hello then young lady, I’m called the Master. Don’t listen to a word he says about me. He’ll make all these terrible claims saying I’ve done this; caused that; murdered these people; eradicated this species, but don’t believe any of it. In reality I am far, far worse.

RUBY: Is that a monster?

DOCTOR: No. No, don't be silly, Ruby. There's no such thing as monsters, there's just... just creatures you haven't met yet.

RUBY: We made it. The human race, we survived. We went to the stars. And ten minutes ago, Doctor, just ten minutes ago, you said genocide. Your people are gone.

DOCTOR: Yeah.

RUBY: How do you keep going?

DOCTOR: For days like this, Ruby Sunday. I don't have a people. I don't have a home. But I don't have a job, either. I don't have a boss, or taxes or rent or bills to pay. I don't have a purpose or a cause, or a mission, but I have... ..freedom. And so I keep moving on, to see the next thing, and the next, and the next. And sometimes... it looks even better through your eyes.

“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.”

BERNICE: So, do you have a girlfriend?

DOCTOR: No.

BERNICE: Boyfriend?

DOCTOR: No

BERNICE: Model Railway Set?

DOCTOR: Somewhere. The TARDIS is full of surprises.

BERNICE: But you’re not the sort of person that keeps a big table, with tiny trees and signal boxes and things?

DOCTOR: No.

BERNICE: Ah, then you must be interested in law and order.

DOCTOR: No. I like chaos. Big explosions. Rebellions. That sort of thing. Why do you ask?

BERNICE: Because I want to know why you go around in a police box!

DOCTOR: You know what one is?

BERNICE: It’s from my favourite era.

DOCTOR: I could’ve changed it ages ago. But I like the shape. And the motto. Call here for help. That’s what I do. I let the little children sleep safely at night, because I’ve searched through all the shadows and chased the baddies away. I’m what monsters have nightmares about! But everybody’s a monster sometimes. We all do things we regret. And sometimes we have to lose things very precious to us.

“I'm a much bigger bang than you bargained for. I'm a lot more explosive than I look, and honey... I know how I look. Put a quantum chain reaction through me and I will shatter this silly little battlefield of yours into dust. All of it, in a heartbeat, into dust.”

“Yeah, two minutes, no lingering. Plenty more universe to see and, quite frankly, your lifespan sucks.”

DOCTOR: Are you happy with us, Victoria?

VICTORIA: Yes, I am. At least, I would be if my father were here.

DOCTOR: Yes, I know, I know.

VICTORIA: I wonder what he would have thought if he could see me now.

DOCTOR: You miss him very much, don't you?

VICTORIA: It's only when I close my eyes. I can still see him standing there, before those horrible Dalek creatures came to the house. He was a very kind man, I shall never forget him. Never.

DOCTOR: No, of course you won't. But, you know, the memory of him won't always be a sad one.

VICTORIA: I think it will. You can't understand, being so ancient.

DOCTOR: Eh?

VICTORIA: I mean old.

DOCTOR: Oh.

VICTORIA: You probably can't remember your family.

DOCTOR: Oh yes, I can when I want to. And that's the point, really. I have to really want to, to bring them back in front of my eyes. The rest of the time they sleep in my mind, and I forget. And so will you. Oh yes, you will. You'll find there's so much else to think about. So remember, our lives are different to anybody else's. That's the exciting thing. There's nobody in the universe can do what we're doing. You must get some sleep and let this poor old man stay awake.

“Well, this is gay!”