Olga

“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

“As he read, I fell in love the way you fall asleep: slowly, and then all at once.”
― John Green, The Fault in Our Stars

“Insanity is doing the same thing, over and over again, but expecting different results.”
― Narcotics Anonymous

“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