“I'd forgotten not all victories are about saving the universe.”

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

“Hitler: Thank you, whoever you are. I think you just saved my life.The Doctor: Believe me... It was an accident.”

“I think that's the way people absorb television. All the explanations in Doctor Who are there if that's your bag, but they're not essential to your enjoyment of it. An awful lot of storytelling isn't really about making people understand — it's about making people care.”

“Don't play games with me! You just killed someone I like, that is not a safe place to stand! I'm the Doctor, and you're in the biggest library in the Universe. Look me up.”

“The universe is big, its vast and complicated, and ridiculous. And sometimes, very rarely, impossible things just happen and we call them miracles. And that's the theory. Nine hundred years, never seen one yet, but this would do me.”

“Kathy Nightingale: What's good about sad? Sally Sparrow: It's happy for deep people.”