Putting aside the added part, I've seen this quote ascribed to Tolstoy more than once, even though it should be painfully obvious it's not a real Tolstoy quote to anyone who read his books. So frustrating. It's a dumb quote too.
Best zombie horror story I ever read had a female lead. The kind of woman that would casually strip the pants off a corpse after putting it into permanent rest to make pads and be completely non chalant about it.