What's wrong with you, Crabbe?

Weasley's wand causes devastation with the simplest spells.

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

You don't want to go making friends with the wrong sort.

We need a teacher.

Completely demented, of course, and terrifying to be in the same room with...

I mean, how many people wander around with dragon eggs in their pockets?

Bloody bird's a menace.

A sorry lot, this, Hagrid.

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

Unless it wasn't a student.

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

...gives a student the right to walk about the school at night.

Look, everyone. Weasley's got himself a Howler.

I read about it in Hogwarts: A History.

That even though we've got a fight ahead of us...

- Have a tea, if you like. - No, Hagrid.

Third year, he fought off about a hundred Dementors at once.

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

So a genius like Dumbledore couldn't possibly be fooled...