Friday was an important day for Harry and Ron. They finally managed to find their way down to the Great Hall without getting lost once.

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

I sometimes find, and I am sure you know the feeling, that I simply have too many thoughts and memories crammed into my mind. “At these times, I use the Pensieve. One simply siphons the excess thoughts from one’s mind, pours them into the basin, and examines them at one’s leisure. It becomes easier to spot patterns and links, you understand, when they are in this form.

This liberating discovery enables me to proceed without any fear that I might inadvertently influence you to abandon promising careers in business, law or politics for the giddy delights of becoming a gay wizard.

Authority figures always attract trouble

I just write what I wanted to write. I write what amuses me. It's totally for myself. I never in my wildest dreams expected this popularity.

All those poor elves I haven’t set free yet, having to stay over during Christmas because there aren’t enough hats!