I have seen him set fire to his wigwam and smooth over the graves of his fathers... clap his hand in silence over his mouth, and take the last look over his fair hunting ground, and turn his face in sadness to the setting sun.
I think exercise tests us in so many ways, our skills, our hearts, our ability to bounce back after setbacks. This is the inner beauty of sports and competition, and it can serve us all well as adult athletes.
I think making mistakes and discovering them for yourself is of great value, but to have someone else to point out your mistakes is a shortcut of the process.

