Even if it is against Slytherin.

- What is this magic? - Fool, get the Stone!

- Well, what it is... - It's my fault, Professor McGonagall.

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

...and ensnare the senses.

Troll! In the dungeon!

Troll in the dungeon!

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

...l can teach you how to bewitch the mind...

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

And now, as I understand it, the house cup needs awarding.

I see myself holding the Stone. But how do I get it?

Never insult Albus Dumbledore...

Harry Potter. Can't tell you how pleased I am to meet you.

Sorry.

When I call your name, you will come forth.

Let's see...

Say, Percy, who's that teacher talking to Professor Quirrell?

Oh, thats Professor Snape, head of Slytherin house.

I prefer Sir Nicholas, if you don't mind.