Computer Network Security: Fourth International Conference on Mathematical Methods, Models, and Architectures for Computer Network Security, MMM-ACNS 2007 St. Petersburg, Russia, September 13–15, 2007 Proceedings

It ain’t over till it’s over. End relationships that no longer work for you, as you could be spending time in a dead end. Rather head for more meaningful things. You could be missing opportunities while you’re stuck in a meaningless rut, trying to breathe life into something that is long gone.