Madness is just what a genius looks like to a tiny mind.
When man invented fire, he didn't say, "Hey, let's cook." He said, "Great, now we can see naked bottoms in the dark.
Reinette: One may tolerate a world of demons for the sake of an angel.
Rule 1: The Doctor lies.
The Doctor...is embarrassingly human for an alien.
Think you've seen it all? Think again. Outside those doors, we might see anything. We could find new worlds, terrifying monsters, impossible things. And if you come with me... nothing will ever be the same again!