I can't put my finger on any one person. I've been influenced by my parents, teachers, several good friends, and one really bad one that was the personification of how not to lead.
Back in 2009, at a Toastmasters District Conference, I heard a speaker named Sarano Kelley. He spoke for 90 minutes with the fire of a T.D. Jakes, and asked one important question that has stuck with me till this day... What Time Is It?
He had written a book about changing your life in 90 days and he kept asking this one question... over and over. His point was that we can only make a difference in our lives...now. We can't do it yesterday and we can't do it tomorrow.