Dumbledore: Harry, do you know why it is that Professor Quirrell could not bear to have you touch him?
[Harry shakes his head]
Dumbledore: It was because of your mother. She sacrificed herself for you, and that kind of act leaves a mark.
[Harry reaches up to touch his scar]
Dumbledore: No no, this kind of mark cannot be seen. It lives in your very skin.
Harry: And what is that?
Dumbledore: Love, Harry. Love.

Sunshine, daisies, butter mellow, turn this stupid, fat rat yellow!

Ron

There is no good and evil, there is only power, and those too weak to seek it...

Lord Voldemort

Hagrid: You all right there, Harry? You seem very quiet.
Harry: He killed my parents, didn't he?
[puts a hand to his scar]
Harry: The one who gave me this?
[Hagrid is silent]
Harry: You know, Hagrid. I know you do.
[Hagrid sighs and pushes his bowl aside]
Hagrid: First - and understand this, Harry, 'cause it's very important - not all wizards are good. Some of them go bad. A while back, there was one that went as bad as you can go...

Ron: What do they think they're doing, keeping a thing like that locked up in a school?
Hermione: You don't use your eyes, do you? Didn't you see what it was standing on?
Ron: I wasn't looking at its feet! I was a bit preoccupied with its heads... or maybe you didn't notice? There were three!

And finally, I must tell you that this year, the third-floor corridor on the right-hand side is out of bounds to everyone who does not wish to die a most painful death.

Dumbledore

Only a person who wanted to find the Stone - find it, but not use it - would be able to get it. That is one of my more brilliant ideas. And between you and me, that is saying something.

Dumbledore

It takes a great deal of courage to stand up to your enemies, but a great deal more to stand up to your friends.

Dumbledore

Harry: Good of you to get us out of trouble like that.
Ron: Mind you, we did save her life!
Harry: Mind you, she might not have needed saving if you hadn't insulted her.
Ron: What are friends for?

For your information Potter, Asphodel and Wormwood making a sleeping potion so powerful it is known as the draught of the living dead, a Beozar is a stone taken from the stomach of a goat and will save you from most poisons. As for Monkshood and Wolfsbane, they are the same plant which also goes by the name of Aconyte. Well, why aren't you all copying this down?

Professor Severus Snape

Harry: I swear I don't know. One second the glass was there and the next it was gone. It was like magic.
Uncle Vernon: There is no such thing as magic!

Harry Potter: What do you know about the Deathly Hallows?
Mr. Ollivander: It is rumored there are three. To possess them all is to make oneself immortal. But few truly believe such objects exist. If it's true, you really don't stand a chance.

FREE Movie Newsletter