Stay Flexible

Here is a little advice from Ross Perot's book My Life & The Principles for Success:

"Probably the most important advice I can give you is to remember that life is not orderly. In many cases, life is not logical. Business and life do not follow the neat lines of an organization chart. Both business and life are far more like a cobweb. As you commit yourself to a business career, remain flexible, realizing that the more you learn about a business, the keener your insight will become about what you really want to do."

If you don't remain flexible, you will break. It is simple as that. You have to be able to roll with the punches. I remember the advice of one of my drill sergeants during basic training. "You have to be able to roll left, roll right, or low crawl up the middle."