You can go through the annals of history and it will be documented that the vast majority of greatness came about as a result of long, hard, dedicated work -- at times unsupervised -- because of the desire of the individual to excel.
"I found this sandbank by the Pearl River near my hometown of Columbia, Mississippi. I laid out a course of 65 yards or so. Sixty-five yards on sand is like 120 on turf. But running on sand helps you make your cuts at full speed. I try to pick the heat of the day to run in, but sometimes the sand will get so hot you can't stand in place. It'll blister your feet. You get to the point where you have to keep pushing yourself. You stop, throw up, and push yourself again. There's no one to feel sorry for you."