Before you make any trade, it is absolutely essential that you know your objective and how you intend to reach it. This means not only identifying the risk/reward, but also defining all possible courses the market might take and then defining your response. In other words, you have to know, before you ever enter the trade, all possible outcomes. Confusion is your biggest enemy during a trade; it will cause you anguish and emotional turmoil as the trade progresses. But confusion, by definition, comes from ignorance, from not understanding what is going on or how to respond to it.
– Victor Sperandeo, Trader Vic – Methods of a Wall Street Master