I don't think there's any harm at all in allowing a kid to fantasize. In fact, I think to stop people from fantasizing is a very destructive thing indeed.

Some say he died. Codswallop, in my opinion. Dunno if he had enough human left in him to die. Some say he’s still out there, bidin’ his time, like, but I don’ believe it.

Which came first, the phoenix or the flame?” "...I think the answer is that a circle has no beginning." "Well reasoned.

Ron and Hermione were still smirking and Harry felt his temper rise; he wasn’t even sure why he was feeling so angry. “Don’t sit there grinning like you know better than I do, I was there, wasn’t I?” he said heatedly. “I know what went on, all right? And I didn’t get through any of that because I was brilliant at Defense Against the Dark Arts, I got through it all because — because help came at the right time, or because I guessed right — but I just blundered through it all, I didn’t have a clue what I was doing — STOP LAUGHING!

Hallows, not Horcruxes.

Bill, don’t look at me — I’m ’ideous.

If you are writing children's books, you need to be a ruthless killer.