Here is a story told by running back great John Riggins. His high school or college coach was trying to motivate him. I found it funny and telling:
John, you have athlete A and athlete B. A is always getting plenty of rest. A always eat properly. A follows his workout plans and keeps a log. B on the other hand stays out chasing girls, drinks, eat fast food, and rarely gets enough rest. At the end of the race A stretches out for the win to take it by a nose. John do you want to be A or B? John replies athlete B seems like a very talented guy.