One of my favourite authors is Mark Sanborn who has recently written the book "You Don't Need a Title to Be a Leader". He simplifies and writes in a way that makes total sense. One of the great parts of his writing is that he pulls from personal experience - he adds colour by adding stories.
In his latest book he points out that the Gettysburg Address is one of the greatest speeches in American history and yet it only contains 10 sentences. In those few words Abraham Lincoln was "able to convey great truths in a powerful and unforgettable way".
Mark adds that great leaders are not evaluated on the length at which they speak, but on the impact of their message. So "What are your 10 sentences as a leader?"