Thunder

“Madge: I don't know why I keep shouting at them.
The Doctor: Because every time you see them happy you remember how sad they're going to be. And it breaks your heart. Because what's the point in them being happy now if they're going to be sad later. The answer is, of course, because they are going to be sad later.
~ The Doctor, the Widow, and the Wardrobe”
― Steven Moffat

“I am and always will be the optimist, the hoper of far-flung hopes and the dreamer of improblable dreams.”
― Matt Smith

“We all change, when you think about it. We’re all different people all through our lives. And that’s OK, that’s good, you gotta keep moving, so long as you remember all the people that you used to be.”
― Steven Moffat

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