found this from some one who trades for living: "In fact, that one thing may even be special insight to a particular industry, an unusual technical analysis pattern that offers a sense of predictability, or even a stock screen which produces consistently good investment candidates. The key is that you've got some special edge. And, no matter how much I desire to help you and will provide you with numerous clues to how I trade successfully, there are some things that I won't ever reveal and will never share with you. Like any successful trader, I fiercely protect my edge. You will do the same once you acquire your own."