River Song: Right, I have questions. But number one is this: what in the name of sanity have you got on your head? The Doctor: It's a fez. I wear a fez now. Fezzes are cool.

If anyone said to me 'invent a new monster so we can sell more toys', I'd kick them out of my office.

If you don't expect to like someone and then you do, that's an incredibly exciting moment.

You should always waste time when you don't have any. Time is not the boss of you. Rule 408.

Fascinatingly confident, rude people are great.

Never run when you're scared. Rule 7.

The Doctor: Just had a fall. All the way down there, right to the library. Heck of a climb back up. Amelia: You're soaking wet. The Doctor: I was in the swimming pool. Amelia: You said you were in the library. The Doctor: So was the swimming pool.