Donovan G

“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.”
― J.K. Rowling, Harry Potter and the Half-Blood Prince

“The truth." Dumbledore sighed. "It is a beautiful and terrible thing, and should therefore be treated with great caution.”
― J.K. Rowling, Harry Potter and the Sorcerer's Stone

“He can run faster than Severus Snape confronted with shampoo.”
― J.K. Rowling, Harry Potter and the Deathly Hallows

“Death's got an Invisibility Cloak?" Harry interrupted again.
"So he can sneak up on people," said Ron. "Sometimes he gets bored of running at them, flapping his arms and shrieking...”
― J.K. Rowling, Harry Potter and the Deathly Hallows