He sounds exactly like Moody," said Harry quietly, tucking the letter away again inside his robes. "'Constant vigilance!' You'd think I walk around with my eyes shut, banging off the walls.

Brains like that, you could be a Death Eater, son.

I will defend the importance of bedtime stories to my last gasp.

Words are, in my not-so-humble opinion, our most inexhaustible source of magic. Capable of both inflicting injury, and remedying it.

Yeah, but coming from Dudley that's like "I love you.

And what in the name of Merlin’s most baggy Y Fronts was that about?

Potter is mocked by a faculty member for the idea that there is evil in the world from which even children need to learn to defend themselves by the actual practice of doing so rather than familiarity with theory.