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.

One wonders if Lyndon Johnson and Richard Nixon's administrations may come to be viewed, in the future, as having been underestimated in some respects. To be sure, each ended in failure. Nonetheless, Johnson's accomplishments in civil rights and immigration legislation, and Nixon's in respect to relations with China, may loom larger with the passage of time.

Woodrow Wilson is reported to have told a Princeton colleague, shortly after the 1912 election, "It would be an irony of fate if my administration had to deal chiefly with foreign problems, for all my preparation has been in domestic matters." In the event, Wilson's early months were marked by substantial domestic legislative accomplishment. Unfortunately, after Europe plunged into the Great War in August 1914, Wilson's leadership was uncertain.

Ronald Reagan's career was so unusual, so unprecedented, that this would be very interesting to learn, to gain understanding of his way of looking at the world.

Many people have a very hard time truly believing that doing the right thing by others, striving to serve them to the greatest extent, can actually be a competitive advantage.

I would suggest two approaches to begin the leadership journey in earnest. First would be to ask oneself, in every interaction with others over the course of a single day: How can you best serve this person? Another approach would be to attempt, over the course of a single day, to reframe your declarative statements into questions. The thoughtful use of questions can be transformational. In my experience, most people find these exercises more challenging - and more rewarding - than they would have imagined.

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.