“If all my friends jumped off a bridge, I wouldn't jump with them. I'd be at the bottom, hoping to catch them.”

“Or about how when you're a child, to stop you from following the crowd you're assaulted with the line "If everyone jumped off a bridge, would you?" but when you're an adult and to be different is suddenly a crime, people seem to be saying, "Hey. Everyone else is jumping off a bridge. Why aren't you?”

“I don't think my mum ever understood my love of Doctor Who. Surely her strongest memory would have been me, standing at the top of the stairs, crying about how the "jelly men" were going to get me? Sorry, Mum, for those sleepless nights, but it was with good reason they called it Terror of the Zygons.”

“It's the circumstances that create fear. How you respond is all you can control. Concentrate on that, and you'll always succeed.”

“It's been my experience, Langford, that the past always has a way of returning. Those who don't learn, or can't remember it, are doomed to repeat it.”

“I detest those who deceive me...”

“Something about history stirred him. He liked following in its footsteps.”