I would have to say my favorite part of Harry Potter, is Harry Potter and the Half Blood Prince. Chapter 16 !!!!
"One of the only honest things you've
said to me. You don't care whether I live or die, but you do care that I help
you convince everyone you're winning the war against Voldemort. I haven't
forgotten, Minister...."
He raised his right fist. There, shining white on the back of his cold hand,
were the scars which Dolores Umbridge had forced him to carve into his
own flesh: I must not tell lies. "