I think the most important quality of an entrepreneur is being patient. This might come as a surprise but it is true. Most entrepreneurs who fail do so because they except to get rich over night. They end up over leveraged and loose everything.
When I was becoming an entrepreneur I had to learn how to wait. I had to sit on good ideas until they became great ideas. I had to wait for the market to swing in a direction favorable to my company. I had to wait for the right employees to apply. Sometimes I was frantically trying to move forward but if you treat your business with a little patience it will serve you better in the long run.