TENTH DOCTOR: What? What?

SIXTH DOCTOR: What are you afraid will happen if you pause for breath?

TENTH DOCTOR: That there won't be another.

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

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

DOCTOR: I've seen worlds destroyed, civilisations choked in their cradles, whole races fleeing in terror. I've seen centuries of art, of science, wiped out in an instant. I just saw a beautiful rainforest burn along with every creature in it. I didn't even know the planet's name! If you're prepared to accept that much collateral damage to the rest of the universe, then what exactly are you fighting for? I'll protect those with no choice in the matter, no voice.

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

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

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: Sometimes the best way to fight a fire is to make sure it doesn’t get started. I’m taking away your matches.

DOCTOR: Believe me, you do not want to make an enemy of humanity. I’ve faced monsters in my time - Daleks, Cybermen, Sontarans - all masters at war in their own way but nothing scares me quite so much as human beings’ capacity for vengeance.

WAR DOCTOR: Oh yes, of course. I suppose it makes sense. Wearing a bit thin. I hope the ears are a bit less conspicuous this time.

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

TENTH DOCTOR: Allons-y!

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

OHILA: We restored you to life, but it's a temporary measure. You have a little under four minutes.

DOCTOR: Four minutes? That's ages. What if I get bored? I need a television, couple of books, anyone for chess? Bring me knitting.

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

DOCTOR: I don't suppose there's any need for a Doctor, anymore. Make me a warrior, now.

DOCTOR: I'm a doctor. But probably not the one you're expecting.

DOCTOR: 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: Lucie, there's a lot of darkness out there. Some of it where Orbis used to be. But you know something? We wouldn't notice any of it if it weren't for all those little pinpricks of light; planets and stars. And that's where I go whenever I feel sad. The next bit of light in the darkness. Keep on moving. Never look back. Well, hardly ever.

DOCTOR: 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.

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: But it was a childish dream that made you a doctor! You dreamt you could hold back death. Isn't that true? Don't be sad, Grace. You'll do great things.

DOCTOR: I love humans. Always seeing patterns in things that aren’t there.

DOCTOR: 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!

ACE: Master? Who's he?

DOCTOR: An evil genius. One of my oldest and deadliest of enemies.

ACE: Do you know any nice people? You know, ordinary people, not power-crazed nutters trying to take over the galaxy?

DOCTOR: The point of archaeology is to carefully recover the past, not disintegrate it.

DOCTOR: Hello, I'm the Doctor! I believe you want to kill me.

DOCTOR: You can always judge a man by the quality of his enemies.