...who possess the predisposition...

There isn't a witch or wizard who went bad who wasn't in Slytherin.

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

Who's the one wizard Voldemort always feared?

Next to him, who would suspect...

What happened to V...? To You-Know-Who?

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

I thought you said the four of us.

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

...all four of you will receive detention.

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

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

...that the third-floor corridor on the right hand side is out of bounds...

Rubeus Hagrid, Keeper of Keys and Grounds at Hogwarts.

Parvati Patil said that she wouldn't come out of the girl's bathroom.

Second, to Mr. Ronald Weasley, for the best-played game of chess...

A little game of Quidditch should be easy work for you.

Bit of a nasty shock for him when he found out.

It's all right, sweetheart. We'll get you out of these cold clothes.

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