Scared?" Malfoy muttered, so that Lockhart couldn't hear him.
"You wish." said Harry out of the corner of his mouth.

HARRY: "Oh, Draco . . . we can’t. We can’t use it."

Draco looks up at Harry, and for the first time — at the bottom of this dreadful pit — they look at each other as friends.

DRACO: "We have to find them — if it takes centuries, we must find our sons —

Most of the time, I think you have to make a choice—at a certain point—of the man you want to be. And I will tell you at that time you need a parent or a friend. And if you've learnt to hate your parent by then and you have no friends...then you're all alone. And being alone—that's so hard."
-Draco Malfoy

Play Quidditch at all?”
“No,” Harry said again, wondering what on earth Quidditch could be.
“I do — Father says it’s a crime if I’m not picked to play for my House, and I must say, I agree. Know what House you’ll be in yet?”
“No,” said Harry, feeling more stupid by the minute.
“Well, no one really knows until they get there, do they, but I know I’ll be in Slytherin, all our family have been — imagine being in Hufflepuff, I think I’d leave, wouldn’t you?

You foul, lying, evil little cockroach!

Famous Harry Potter," said Malfoy. "Can't even go to a bookshop without making the front page.