The following comes "The Carolina Way" written by Dean Smith:
I break down the idea of working hard into three main components:
1. Pure effort: It may seem
paradoxical, but it’s the people who bring the same great effort to work effort
to work every day who don’t burn out.
2. Concentration: You must stay
in the present and focus on each task, one at a time. Don’t jump ahead to
another problem before you finish with the one at hand.
3. Self-discipline: Managers
must work until they finish a project. That means having the patience to repeat
things until they are done correctly. Usually it’s the dreary 5 percent of the
wrap-up that’s the hardest.