All lives end. All hearts are broken. Caring is not an advantage.

Never ignore a coincidence. Unless you're busy, in which case, always ignore a coincidence.

I always tend to favor the newer idea.

It’s been a long time since Sherlock Holmes jumped off that roof - it’s time to reveal the truth about what happened between him and the pavement.

I think of myself as a writer with a sense of humour rather than a comedy writer. Happy to tell a story with lots of jokes in it - I wouldn't know how to do jokes without the story.

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.

Amy: I had something I wanted to tell him. Stuff always gets in the way. Canton: Stuff does that.