Listen, you are all very, very angry. And really, you’re just scared. But for now, would you mind awfully just jumping out of your skins and allowing Nardole and I to escape in the confusion?

The Doctor

Nardole [about a crow]: But it *talked*!
The Doctor: Well, of course it did. It’s a crow. All crows talk.
Nardole [taken aback]: Well, they don’t talk in the *future*!
The Doctor: Of course they do. Human beings just stopped having intelligent conversations with them, and they all took a bit of a huff.
Nardole: Crows in the future all in a huff?
The Doctor: Of course they are! Haven’t you noticed that noise they make? It’s like a mass sulk!

Five thousand Roman soldiers. Eyes peeled. They must have left some kind of mark on the landscape -- burning huts, slaughtered locals, sweetie wrappers.

The Doctor

To die in battle is the way of the warrior.

Iraxxa

There’s no setting for wood! Why is there still no setting for wood?

The Doctor [about his sonic screwdriver]

Well, I daresay the British Army is more than a match for a bunch of upright crocodiles!

Catchlove

Iraxxa: And you! Female! What do you say?
Bill [taken aback]: Me?
Iraxxa: We are both surrounded by… noisy males. I would value your opinion.

The Doctor: The simple fact is you don’t belong here. The sooner you get off this planet, the better.
Catchlove: “Don’t belong here”? We’re British! Mars is part of the Empire now!

The Doctor: What’re you doing?!
Nardole: Fire, oxygen. Basic physics, innit?
The Doctor: Could’ve been basic *death*!

Bill: If there *are* people here, why would they bother writing messages on the surface of the planet?
The Doctor: State visit, patriotic fervor… rogue graffiti artist…

It’s a five thousand-year-old pyramid. There’s one problem with that, one little problem -- wasn’t there yesterday.

Colonel Brabbit

The Doctor: The end of your life is already begun. There is a last place you will ever go, a last door you will ever walk through, a last sight you will ever see. And every step you ever take is moving you closer. The end of the world is a billion, billion tiny moments. And somewhere, unnoticed, in silence or in darkness, it has already begun.
Bill [outside the TARDIS]: ...Are you talking to yourself in there?

Doctor Who Quotes

There's a horror movie named Alien? That's really offensive. No wonder everybody keeps invading you.

The Doctor

The Doctor: It's a risk.
Graham: Oh, like none of our other trips have ever been risky.
The Doctor: I have apologized for the Death Eye Turtle Army! Profusely.