In Stephen Covey's diagram from the book 'The 7 Habits of Highly Effective People' the circles represent the areas where you can focus your time and energy. The vast majority of people focus too much time and energy outside of their Circle of Influence, in their Circle of Concern. These people worry about things they cannot control, such as the weather next weekend or war in the Middle East. Preoccupying yourself with issues like that is a huge waste of time and energy. Covey notes that highly effective people think and act primarily within their Circle of Influence. They forget about the things over which they have no control, preferring to focus their time and energy on issues where they can actually make a difference. By doing this, they gradually expand their Circle of Influence as they earn more power and respect. Where do you spend most of your time and energy?