Ayesha

“Mr. Moony presents his compliments to Professor Snape, and begs him to keep his abnormally large nose out of other people's business.
Mr. Prongs agrees with Mr. Moony, and would like to add that Professor Snape is an ugly git.
Mr. Padfoot would like to register his astonishment that an idiot like that ever became a professor.
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

“If you want to know what a man's like, take a good look at how he treats his inferiors, not his equals.”
― J.K. Rowling, Harry Potter and the Goblet of Fire

“It takes a great deal of bravery to stand up to our enemies, but just as much to stand up to our friends.”
― J.K. Rowling, Harry Potter and the Sorcerer's Stone

“You could say sorry," suggested Harry bluntly.
"What, and get attacked by another flock of canaries?" muttered Ron.
"What did you have to imitate her for?"
"She laughed at my mustache!"
"So did I, it was the stupidest thing I've ever seen.”
― J.K. Rowling, Harry Potter and the Half-Blood Prince