Success is not necessarily determined by material possessions or accomplishments. You can enjoy success simply by reaching the point where you are perfectly content with your life in every respect and you feel no dissatisfaction or pressing need for anything else. In this sense, you can be a success sitting by yourself in a quiet place contemplating the world.
Brian Tracy (2002). “The 100 Absolutely Unbreakable Laws of Business Success”, p.29, Berrett-Koehler Publishers