It is the unknown we fear when we look upon death and darkne... - J.K. Rowling, Harry Potter and the Half-Blood Prince

"Snape raised his wand and pointed it directly at Dumbledore."Avada Kedavra!"

"Do you remember me telling you we are practicing non-verbal spells, Potter?""Yes,"said Harry stiffly."Yes, sir.""There's no need to call me "sir"Professor."The words had escaped him before he knew what he was saying."

"The thing about growing up with Fred and George,"said Ginny thoughtfully, "is that you sort of start thinking anything's possible if you've got enough nerve."

"I see a light in the kitchen. Let us not deprive Molly any longer of the chance to deplore how thin you are."

"An Unbreakable Vow?"said Ron, looking stunned. "Nah, he can’t have.... Are you sure?""Yes I’m sure,"said Harry. "Why, what does it mean?""Well, you can’t break an Unbreakable Vow...""I’d worked that much out for myself, funnily enough."