I've laid my friends bare.

If someone asked for my recipe for happiness, step one would be finding out what you love most in the world and step two would be finding someone to pay you to do it. I consider myself very lucky indeed to be able to support myself by writing.

I remember every wand I’ve ever sold, Mr. Potter. Every single wand. It so happens that the phoenix whose tail feather is in your wand, gave another feather — just one other. It is very curious indeed that you should be destined for this wand when its brother — why, its brother gave you that scar.

I believe in hard work and luck, and that the first often leads to the second

Bad news, Harry. I've just been to see Professor McGonagall about the Firebolt. She – er, got a bit shirty with me. Told me I'd got my priorities wrong. Seemed to think I cared more about winning the Cup than I do about staying alive. Just because I told her I didn't care if it threw you off, as long as you caught the Snitch first.

Every time he tried to reconstruct the internal arguments that had led to his decision, they sounded feebler to him.

You must accept the reality of other people. You think that reality is up for negotiation, that we think it's whatever you say it is. You must accept that we are as real as you are; you must accept that you are not God.