The defining word for leaders is trust. With trust, there is nothing leaders can't get done; without trust, nothing gets done without lots of pain, cost, and time. I studied leadership researchers (Goleman, Tichy, Kouzes and Posner, Goldsmith, and others) and finally was able to hang their collective research onto a simple, three-part model developed more than 2,500 years ago by Aristotle - the smartest guy ever.