“They're coming. They're coming for you, but listen, your life could depend on this. Don't blink. Don't even blink. Blink and you're dead. They are fast, faster than you can believe. Don't turn your back, don't look away, and don't blink. Good luck.”

“You want weapons? We’re in a library! Books! The best weapons in the world!”

“I’m old enough to know that a longer life isn’t always a better one. In the end, you just get tired; tired of the struggle, tired of losing everyone that matters to you, tired of watching everything you love turn to dust. If you live long enough, Lazarus, the only certainty left is that you’ll end up alone.”

“A bottle? Floating in the middle of deep space. It's a milk bottle. Right. Well, I've clearly got a very determined milkman!”

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

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

“Do you know like we were saying about the Earth revolving? It's like when you were a kid. The first time they tell you the world's turning and you just can't quite believe it because everything looks like it's standing still. I can feel it. The turn of the Earth. The ground beneath our feet is spinning at a thousand miles an hour, and the entire planet is hurtling round the sun at sixty seven thousand miles an hour, and I can feel it. We're falling through space, you and me, clinging to the skin of this tiny little world, and if we let go. That's who I am. Now, forget me, Rose Tyler. Go home.”

“Don't play games with me. You just killed someone I liked. That is not a safe place to stand. I'm the Doctor, and you're in the biggest library in the universe. Look me up.”

“Oh, you should have seen it, that old planet. The second sun would rise in the south, and the mountains would shine. The leaves on the trees were silver, and when they caught the light every morning, it looked like a forest on fire. When the autumn came, the breeze would blow through the branches like a song.”

“Whatever you've got planned, forget it. I'm the Doctor. I'm nine hundred and four years old. I'm from the planet Gallifrey in the constellation of Kasterborous. I am the Oncoming Storm, the Bringer of Darkness, and you are basically just a rabbit, aren't you? Okay, carry on. Just a general warning.”

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.

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

TENTH DOCTOR: Allons-y!

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

DOCTOR: Davros? Come with me. I promise I can save you.

DAVROS: Never forget, Doctor, you did this. I name you. Forever, you are the Destroyer of Worlds!

MR SMITH: I regret I will need remote access to TARDIS base code numerals.

DOCTOR: Oh, blimey, that's going to take a while.

SARAH: No, no, no. Let me. K9, out you come!

K9: Affirmative, Mistress.

DOCTOR: Oh! Oh ho! Oh, good dog!

FIFTH DOCTOR: So that thing can scan for temporal anomalies but it can't open a lock?

TENTH DOCTOR: Totally different mechanics.

DOCTOR: Hmm, there it is again. That itch. Go down, go down, go down, go down, go down.

IDA: The urge to jump. Do you know where it comes from, that sensation? Genetic heritage. Ever since we were primates in the trees. It's our body's way of testing us. Calculating whether or not we can reach the next branch.

DOCTOR: No, that's not it. That's too kind. It's not the urge to jump. It's deeper than that. It's the urge to fall.

DOCTOR: You let one of them go, but that's nothing new. Every now and then, a little victim's spared because she smiled, because he's got freckles, because they begged. And that's how you live with yourself. That's how you slaughter millions. Because once in a while, on a whim, if the wind's in the right direction, you happen to be kind.

MARGARET: Only a killer would know that. Is that right? From what I've seen, your funny little happy go lucky little life leaves devastation in its wake. Always moving on because you dare not look back. Playing with so many peoples lives, you might as well be a god. And you're right, Doctor. You're absolutely right. Sometimes you let one go. Let me go.