have no trouble knowing who they are. They like to avoid any social duty, and their demands for physical and emotional space are fundamental even if they seem unrealistic. They have clarity of thought and like to get to the fundamentals of any problem. They have little need for the support of social ties and can settle themselves in anywhere as long as due consideration is given to their private life. They can concentrate hard, but having a good mix of work and fun is very important for them. They tend to be emotionally on the defensive and are sensitive to the pain of others.