Ikhlas

“What was there to be gained by fighting the most evil wizard who has ever existed?" said Black, with a terrible fury in his face. "Only innocent lives, Peter!"
"You don't understand!" whined Pettigrew. "He would have killed me, Sirius!"
"THEN YOU SHOULD HAVE DIED!" roared Black. "DIED RATHER THAN BETRAY YOUR FRIENDS, AS WE WOULD HAVE DONE FOR YOU!”
― J.K. Rowling, Harry Potter and the Prisoner of Azkaban

“What's that?" he snarled, staring at the envelope Harry was still clutching in his hand. "If it's another form for me to sign, you've got another -"
"It's not," said Harry cheerfully. "It's a letter from my godfather."
"Godfather?" sputtered Uncle Vernon. "You haven't got a godfather!"
"Yes, I have," said Harry brightly. "He was my mum and dad's best friend. He's a convicted murderer, but he's broken out of wizard prison and he's on the run. He likes to keep in touch with me, though...keep up with my news...check if I'm happy....”
― J.K. Rowling, Harry Potter and the Prisoner of Azkaban