Sarah

“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

“It is our choices, Harry, that show what we truly are, far more than our abilities.”
― J.K. Rowling, Harry Potter and the Chamber of Secrets

“But I don’t want to go among mad people," Alice remarked.
"Oh, you can’t help that," said the Cat: "we’re all mad here. I’m mad. You’re mad."
"How do you know I’m mad?" said Alice.
"You must be," said the Cat, "or you wouldn’t have come here.”
― Lewis Carroll, Alice in Wonderland

“Do not pity the dead, Harry. Pity the living, and, above all those who live without love.”
― J.K. Rowling, Harry Potter and the Deathly Hallows