Lily

“But some part of him realized, even as he fought to break free from Lupin, that Sirius had never kept him waiting before. . . . Sirius had risked everything, always, to see Harry, to help him. . . . If Sirius was not reappearing out of that archway when Harry was yelling for him as though his life depended on it, the only possible explanation was that he could not come back. . . . That he really was . . .”
― 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.
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

“You don’t understand — there are things worth dying for!”
― J.K. Rowling, Harry Potter and the Order of the Phoenix

“I know [Umbridge] by reputation and I'm sure she's no Death Eater—'
'She's foul enough to be one…'
'Yes, but the world isn't split into good people and Death Eaters', said Sirius with a wry smile. 'I know she’s a nasty piece of work though'.”
― J.K. Rowling, Harry Potter and the Order of the Phoenix