Abigail

“I cared more about your happiness than your knowing the truth, more for your peace of mind than my plan, more for your life than the lives that might be lost if the plan failed. In other words I acted exactly as Voldemort expects we fools who love to act.”
― J.K. Rowling, Harry Potter and the Order of the Phoenix

“Fred looked across the hall at the poltergeist bobbing on his level above the crowd. “Give her hell from us, Peeves.” And Peeves, whom Harry had never seen take an order from a student before, swept his belled hat from his head and sprang to a salute as Fred and George wheeled about to tumultuous applause from the students below and sped out of the open front doors into the glorious sunset.”
― J.K. Rowling, Harry Potter and the Order of the Phoenix

“Mr Moony presents his compliments to Professor Snape, and begs him to keep his abnormally large nose out of other people's business.'
Snape froze. Harry stared, dumbstruck, at this message. But the map didn't stop there. More writing was appearing beneath the first.
'Mr Prongs agrees with Mr Moony, and would like to add that Professor Snape is an ugly git.'
It would have been funny if the situation hadn't been so serious. And there was more...
'Mr Padfoot would like to register his astonishment that an idiot like that ever became a Professor.'
Harry closed his eyes in horror. When he'd reopened them, the map had had its last word.
'Mr Wormtail bids Professor Snape good day, and advises him to wash his hair, the slimeball.”
― J.K. Rowling, Harry Potter and the Prisoner of Azkaban

“Indeed, your failure to understand that there are things much worse than death has always been your greatest weakness.”
― J.K. Rowling, Harry Potter and the Order of the Phoenix