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.

River Song: Right then. 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.

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

Never run when you're scared. Rule 7.

Never knowingly be serious. Rule 27.

The Doctor: Dr. 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.