Ronald Reagan memorably combined intimacy with distance.

Effective leaders at a high level tend to be skilled actors. Franklin Roosevelt is said to have to quipped, on being introduced to Orson Welles, that they were the two greatest actors in America. The story may be apocryphal, but the message rings true.

Dwight Eisenhower has been underestimated, which may relate to his advanced age in office, his somewhat uneven communications skills, and his failure to present a forward-looking vision on the rising issue of civil rights.

Arguably there's no school for any high position of leadership. That said, Theodore Roosevelt was remarkably well prepared for the presidency. He had held executive positions in the military, in local government, in the federal government.

I often encountered books by academics and others who had not actually done what they had written about. They tend to create artificial simplicity; their prose doesn't have the vigor of "lived words." On the other hand, many practitioners lack the context or introspection to make their experiences and understandings transferable - and, in our time, many don't actually write the books they "author." My ideal is to unify theory and practice.

President-elect John F.Kennedy said to Robert McNamara that there's no school for presidents, or, for that matter, for secretaries of defense.

There are people all around us whose lives are masterpieces of service. One thinks of parents working two or three jobs to serve their families and community. So, too, many in the military or in nursing or teaching. As the needs are endless, so are the possibilities of service. Now, more than ever, empowered by the Internet, more of us can serve in more ways than ever before in history.