To Miss Hermione Granger, for the cool use of intellect...

Maybe you don't have to do this all by yourself, mate.

Make way there, please. Let me by, madam. Thank you.

This is light?

Here he is.

At the end of the year, the house with the most points is awarded the house cup.

Red hair and a hand-me-down robe? You must be a Weasley.

There was a time detention would find you hanging by your thumbs in the dungeons.

"All students will return to their house common rooms by 6:00 every evening."

This is Crabbe, and Goyle.

The only problem is, I can't remember what I've forgotten.

- That's a boggart, that is. - Very good, Mr. Thomas.

That's unicorn blood, that is. I found one dead a few weeks ago.

...is used to return those who have been Petrified to their original state.

A bezoar is a stone taken from the stomach of a goat and it will save you from most poisons.