How's this for commitment to practice and improving? Michael Phelps is the most decorated Olympian of any sport with a total of 28 medals.
“Most people lose because they are trying to take shortcuts. But there are no shortcuts. Do you know why Michael Phelps is the greatest Olympian of all time? He never took a shortcut. He once went five straight years, 365 days per year, without missing a workout.”
-From “Pound The Stone