The magic of enough: author Brian Portnoy on wealth

Most people start with figuring out the right place to invest – and that is important, but it is actually the end of the process. First, you have to understand your own behavior. For instance, most people tend to buy high and sell low. They find it hard to focus on the long-term and dislike diversified portfolios. So behavior matters much more than people realize, and portfolio construction pales in comparison to simply controlling your own negative behaviors.