The Doctor: I'm not actually the police, that's just what it says on the box.
The Doctor: Because what's the one thing that gods never do. Gods never actually show up!
Clara: Why play god?
Odin: What is a god but the cattle's name for "farmer"? What is Heaven, but the gilded door of the abattoir?
The Doctor: Fly like a bird. Run like a nose. That's probably a Viking saying.
The Doctor: So... when I say move, you move. When I say jump, you say "how high?" Unless it's to cross a gap of some kind, which of course means you jump horizontally.
Heidi: What happened?
The Doctor: The Big Bang, dinosaurs, bipeds, a mounting sense of futility.
Clara: More recently, Chuckles hit Lofty over the head, hit his helmet with his sword, which knocked him out, and there was a little blood, which you saw (Heidi faints) . And did that. Only the first time you did it, you knocked a torch over into some hay, which spooked a horse, which kicked upon the gate, and, um, I'm sure you can fill in the rest.
The Doctor: You could go.
Ashildr: There's nowhere for me except here. This is my place. The sky, the hills, the sea, the people. Is there nowhere like that for you?
The Doctor: Oh, I like a nice view as much as anyone.
The Doctor: Can't wait for the next one.
Ashildr: I pity you.
The Doctor: I will mourn for you. I know which I'd prefer.
Clara: How's it going?
The Doctor: Reversing the polarity of the neutron flow. I bet that means something, sounds great.
The Doctor: I'm the Doctor, and I save people. And if anyone happens to be listening, anyone have any kind of a problem with that, to hell with you!
Clara: (to the Doctor) Okay, it's official. Silence is even worse than a Scottish accent. Are you going to tell me what you're brooding about?
The Doctor: Immortality isn't living forever, that's not what it feels like. Immortality is everyone else dying.