The most recent popular author with books centered on developing a life style which will guide you in your life is Stephen R. Covey. He explains in his many books how to develop a mission statement by proactively beginning with the end in mind, putting first things first, seeking to understand the world in which you live, synergism of assets, improving your inventory of skills, building trust and viewing the world accurately while remaining positive. Well, good luck doing all that. He calls these aspects of our actions the 7 Habits.
Follow these links to web sites which will guide you toward a better understanding of these techniques. You will also find help in developing a personal and business mission statement.
http://www.franklincovey.com/the7habits/
http://www.franklincovey.com/missionbuilder/
http://www.amazon.com/exec/obidos/tg/detail/-/
0671708635/104-6050337-4403153?v=glance
http://www.fastcompany.com/magazine/72/7habits.html
http://www.quickmba.com/mgmt/7hab/