What happened down in the dungeons between you and Professor Quirrell is a complete secret, so, naturally the whole school knows.

Honestly, if you were any slower, you’d be going backward.

Mad Eye' Moody on the Avada Kedavra curse: "Not nice," he said calmly. "Not pleasant. And there's no counter curse. There's no blocking it. Only one known person has ever survived it, and he's sitting right in front of me.

I've often met people who are terrified, you know, in a straight jacket of their own making because they'd rather do anything that fail. They don't want to try for fear of failing.

Why do they have to move in packs?" Harry asked Ron as a dozen or so girls walked past them, sniggering and staring at Harry. "How're you supposed to get one on their own to ask them?" "Lasso one?" Ron suggested.

Some of her self-hatred had oozed out with the blood.

The most important thing is to read as much as you can, like I did. It will give you an understanding of what makes good writing and it will enlarge your vocabulary.