"I have a new name for pain." "The Obliterator. Because when you're in pain, nothing else can exist. Not thought. Not emotion. Only the drive to escape the pain. When it is strong enough, the obliterator strips us of everything that makes us who we are, until we are reduced to creatures less than animals, creatures with a single desire and goal: escape"
"...pain. It's like a poison, weakening my muscles and clouding my mind. I just hope that I can remain sane..." (Eragon - 'Eldest')