“Well, you split your soul, you see, and hide part of it in an object outside the body. Then, even if one’s body is attacked or destroyed, one cannot die, for part of the soul remains earthbound and undamaged. But of course, existence in such a form . . .”

“Whatever happens to your body, your soul will survive, untouched...”

“Because to confide a part of your soul to something that can think and move for itself is obviously a very risky business.”

“You can exist without your soul, you know, as long as your brain and heart are still working. But you’ll have no sense of self anymore, no memory, no . . . anything. There’s no chance at all of recovery. You’ll just — exist. As an empty shell. And your soul is gone forever . . . lost.”

“What would your head have been doing in Hogsmeade, Potter?" said Snape softly. "Your head is not allowed in Hogsmeade. No part of your body has permission to be in Hogsmeade.”

“Your mother died to save you. If there is one thing Voldemort cannot understand, it is love. He didn't realize that love as powerful as your mother's for you leaves its own mark. Not a scar, no visible sign… to have been loved so deeply, even though the person who loved us is gone, will give us some protection forever. It is in your very own skin. Quirrel, full of hatred, greed, and ambition, sharing his soul with Voldemort, could not touch you for this reason. It was agony to touch a person marked by something so good.”

“Are you trying to weasel out of showing us any of this stuff?' said Zacharias Smith. 'Here's an idea,' said Ron loudly, 'why don't you shut your mouth?' 'Well, we've all turned up to learn from him, and now he's telling us he can't really do any of it,' he said. 'That's not what he said,' said Fred Weasley. 'Would you like us to clean out your ears for you?' inquired George, pulling a long and lethal-looking metal instrument from inside one of the Zonko's bags. 'Or any part of your body, really, we're not fussy where we stick this,' said Fred.”