Are you a failure if you quit your project mid-stream?
There are times when a plan is aborted through outside means. You must know when to walk away from it and let it go. I don't look at this as quitting. It is just that the success of the entire plan does not usually rest on one individual or individual idea. In other words, other factors which are out of your control can cause it to go down. You must see that the project continues to merit your time. It is easy to get tied up in something and spend the rest of your life chasing dimes with dollars. This is usually because of a lack of judgment or because of pride. Don't let pride make your business decisions. You must discern the time to breathe life, time, and money into a project, and you must also know how to read the handwriting on the wall and to put it out of its misery. There are many battles in each war. There will be another day. There will be another opportunity.