You just can't. It's not that you don't have a choice, but you just cannot exercise your right to give up. We all could quit if we chose to. Quitting or giving up is a choice. It's a conscious decision. As its within you to stop trying if you want to, it's also within you to keep going if you decide to. Choose to stay in the game, on the field and in the fight. Can't win if you quit. It's not over until God says it's over.