I don't know anyone with more tenacity than Lance Mackey when it comes to goal pursuit. A cancer survivor with the odds stacked against him in many ways, Lance simply set his sights on his goal - 1st place in what is known as the "Last Great Race on Earth" - the Iditarod. On Tuesday, March 16, 2010, Lance Mackey made dog mushing history winning his 4th consecutive Iditarod race. What can we learn from Lance? It's about appetite and attitude.