If there is one thing Voldemort cannot understand, it is love.

That's what they should teach us here. How girls' brains work... It would be more useful than divination, anyway.

Fred and George turned to each other and said together, “Wow — we’re identical!

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.

The poor are discussed as this homogeneous mash, like porridge. The idea that they might be individuals, and be where they are for very different, diverse reasons, again seems to escape some people.

I've been writing since I was six. It is a compulsion, so I can't really say where the desire came from; I've always had it. My breakthrough with the first book came through persistence, because a lot of publishers turned it down!

And his knowledge remained woefully incomplete, Harry! That which Voldemort does not value, he takes no trouble to comprehend. Of house-elves and children's tales, of love, loyalty, and innocence, Voldemort knows and understands nothing. Nothing. That they all have a power beyond his own, a power beyond the reach of any magic, is a truth he has never grasped.