Youth cannot know how age thinks and feels. But old men are guilty if they forget what it was to be young.

If only the hat had mentioned a house for people who felt a bit queasy, that would have been the one for him.

Miss Granger, you foolish girl, how could you think of tackling a mountain troll on your own? Five points will be taken from Gryffindor for this,” said Professor McGonagall. “I’m very disappointed in you.” Hermione left. Professor McGonagall turned to Harry and Ron. “Well, I still say you were lucky, but not many first years could have taken on a full-grown mountain troll. You each win Gryffindor five points.

Writing for me is a kind of compulsion, so I don't think anyone could have made me do it, or prevented me from doing it.

You have to kill a lot of trees before you write anything good.

What I would most like to think they would take away, is what I take away when I read my favorite books. Which is the knowledge that there is always somewhere you can go, that you love, and where you're safe. And that's how I feel about my favorite books, wherever I am, if I've got that book with me, I've got a place where I can go and be happy. So if that place is Hogwarts for anyone, then I couldn't be more honored or humbled.

My Head of House said I lacked certain necessary qualities...like the ability to behave myself.