They are Gryffindor, Hufflepuff...

Now, before we begin...

Oh, are you doing magic? Let's see, then.

Me? Books and cleverness. There are more important things.

- We were just... - You ought to be careful.

Not on its own. Trolls are really stupid. Probably people playing jokes.

We'll soon find out that some wizarding families are better than others, Potter.

The Forest? I thought that was a joke. We can't go in there.

Oh, good God, man, you're not still on about that bloody dragon, are you?

As for monkshood and wolfsbane, they are the same plant, which also goes by the name of aconite.

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

The Philosopher's Stone.

That's what's under the trap door. The Philosopher's Stone.

This is the most direct path to the dormitories.

...who possess the predisposition...

powerful it is known as the Draught of the Living Dead.

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

God, I miss the screaming.

And the points stand thus:

I knew the name sound familiar. I read it on the train that day.