Everybody knows that everybody dies. But not every day. Not today. Some days are special. Some days are so, so blessed. Some days, nobody dies at all. Now and then, every once in a very long while, every day in a million days, when the wind stands fair and the Doctor comes to call, everybody lives.

Reinette: One may tolerate a world of demons for the sake of an angel.

Come on, Rory! It isn't rocket science, it's just quantum physics! -The Doctor (Matt Smith)

Never knowingly be serious. Rule 27.

You'll go out of business if you think people are stupid.

The Doctor: Doctor Song, you've got that face on again. River: What face? The Doctor: The "He's hot when he's clever" face. River: This is my normal face. The Doctor: Yes it is. River: Oh, shut up. The Doctor: Not a chance.

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