What to do when YOU want to stop?

Earlier, I wrote that as you become more successful, someone is going to want to stop you, but the time may come when you are tempted to stop on your own.  Why? It may be something small like the frustration of the day.  You may be tempted to give up faith in yourself or your idea.  It could be something big, like the opportunity to make a real gain on your effort.  Before you stop, before you give in to the temptation, think it through.  Is it worth it?  Is it worth giving up all you have invested or the opportunity to make a difference?