There is no good and evil, there is only power and those too weak to seek it.

I'm sure that I'll never have another success like Harry Potter for the rest of my life, no matter how many books I write, and no matter whether they're good or bad.

According to Nietzche," said a sharp new voice, making them all jump, "philosophy is the biography of the philosopher.

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

Professor Flitwick had dried himself off and set Seamus lines ("I am a wizard not a baboon brandishing a stick")

In truth, I never consider the audience for whom I'm writing. I just write what I want to write.

Don't be stupid, it's a flying house!