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

MANDY: You’re not gonna kill them are you?

DOCTOR: I never kill… Not anymore.

TENTH DOCTOR: We must stop meeting like this.

FIFTH DOCTOR: (chuckles) No, we really must, I mean, it could literally tear the fabric of reality apart.

TENTH DOCTOR: Yes.

FIFTH DOCTOR: So we shouldn't.

TENTH DOCTOR: No.

FIFTH DOCTOR: Fun, though. At times.

TENTH DOCTOR: Yes. Yes, it was!

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: Who I am is where I stand. Where I stand is where I fall.

DOCTOR: Without hope. Without witness. Without reward.

BILL: So, the Time Lords, bit flexible on the whole man-woman thing, then, yeah?

DOCTOR: We're the most civilised civilisation in the universe. We're billions of years beyond your petty human obsession with gender and its associated stereotypes.

BILL: But you still call yourselves Time Lords?

DOCTOR: Yeah. Shut up.

(Talking about Missy)

BILL: She's a murderer.

DOCTOR: Enjoying your bacon sandwich?

BILL: Why?

DOCTOR: Because it had a mummy and a daddy. Go tell a pig about your moral high ground.

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: Time And Relative Dimension In Space. TARDIS for short. You're safe in here. You're safe in here and you always will be.

DOCTOR: You look, er, amazing.

RIVER: Doctor, you have no idea whether I look amazing or not.

DOCTOR: Well, you've moved your hair about, haven't you?

RIVER: Well done. It's very sweet of you to try.

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.

DOCTOR: Times end, River, because they have to. Because there's no such thing as happy ever after. It's just a lie we tell ourselves because the truth is so hard.

RIVER: No, Doctor, you're wrong. Happy ever after doesn't mean forever. It just means time. A little time. But that's not the sort of thing you could ever understand, is it?

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

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

DOCTOR: Let me tell you about scared. Your heart is beating so hard, I can feel it through your hands. There's so much blood and oxygen pumping through your brain, it's like rocket fuel. Right now, you could run faster and you could fight harder, you could jump higher than ever in your life. And you are so alert, it's like you can slow down time. What's wrong with scared? Scared is a superpower. It's your superpower. There is danger in this room and guess what? It's you.

DOCTOR: He asked you a question. Will you help me?

CLARA: You shouldn't have been listening.

DOCTOR: I wasn't. I didn't need to. That was me talking. You can't see me, can you? You look at me, and you can't see me. Have you any idea what that's like? I'm not on the phone, I'm right here, standing in front of you. Please, just, just see me.

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.

TENTH DOCTOR: It's a machine that goes ding. Made it myself. Lights up in the presence of shape-shifter DNA. Ooo. Also it can microwave frozen dinners from up to twenty feet and download comics from the future. I never know when to stop.

ELEVENTH DOCTOR: It's a timey-wimey thing.

WAR DOCTOR: Timey what? Timey-wimey?

TENTH DOCTOR: I've no idea where he picks that stuff up.