I believe that there is a limit for everyone, regarding everything. Depending on the person, limits can be flexible, even moveable. But there comes a point in every person where the limits have been bended and stretched to their breaking point. Usually this comes after a week or two of little-to-no sleep, but eventually it happens. And when it does, the world becomes a little clearer. That person realizes that she will not take any more crap, and things will eventually get better. Courage comes in at this point, and makes you stronger than ever before. Only then does this person realize what is truly worth fighting for, and what is already long gone.