I took some notes during Colin Powell's keynote address this past Sunday at the PMI Congress and I was looking at them as I unpacked from the trip.
He talked about leadership, not a surprise from a military officer. His message was similar to what other leaders would tell you; you have to provide the purpose and get people excited, you have to take care of your troops, you have to inspire people to become self motivated, and you have to have integrity.
There was one thing that really resonated with me. He also talked about the transition in his life after leaving the military and his role as Secretary of State. He was describing his thought process when he was determining what he would do next. His advice; don't go through life looking in the rear-view mirror, look ahead.