Amy: "Can I come?" Doctor: "Not safe in here, not yet. Five minutes. Give me five minutes and I'll be right back." Amy: "People always say that." Doctor: "Am I people?...Do I even look like people?...Trust me, I'm the Doctor.

Nothing can ever be a rule in drama, because then you're saying certain things won't ever happen, and that would be very boring.

I hope I won't become hated by geeks everywhere, but I don't really know comic books all that well.

It's the 50th year of Doctor Who and look what's going on! We're up in the sky and under the sea! We're running round the rings of an alien world and then a haunted house. There's new Cybermen, new Ice Warriors and a never before attempted journey to the centre of the TARDIS. And in the finale, the Doctor's greatest secret will at last be revealed! If this wasn't already our most exciting year it would be anyway!

Madame Kovarian: The anger of a good man is not a problem. Good men have too many rules. The Doctor: Good men don't need rules. Today is not the day to find out why I have so many.

You don't want to take over the universe. You wouldn't know what to do with it beyond shout at it.

You want weapons? We're in a library! Books! The best weapons in the world!