Do you know how you make someone into a Dalek? Subtract Love, add Anger.

I don't know. I can't tell the future I just work there.

I don't want to think that the stories are finite; I want to feel that they can go on forever.

Peter Capaldi, will always be Doctor Who. You retain the title forever. Ask your predecessors, they all think they're the real one. I've had Sunday lunch with Peter Davidson and David Tennant and they're eyeing each other like, 'It's me!

There’s this issue you’re not allowed to discuss: that women are needy. Men can go for longer, more happily, without women. That’s the truth. We don’t, as little boys, play at being married - we try to avoid it for as long as possible. Meanwhile women are out there hunting for husbands.

When writing comedy, you have to have the confidence to believe that there is only one type of relationship in the world, and we are all having it, that all men behave in the same way and so do all women.

The Doctor: [aiming gun at the ceiling] Didn't anyone ever tell you? There's one thing you never put in a trap if you're smart. If you value your continued existence, if you have any plans about seeing tomorrow, there's one thing you never, ever put in a trap. Angel Bob: And what would that be, sir? The Doctor: Me. [fires]