It is my observation that in recent years discipline is not as common a human attribute in people as it once was. Figures showing that well over 50% of Americans are overweight and surveys that cite a significant drop in youth(teens) participation in organized sports would appear to, in part, confirm this.
Also, we are now more of a spectator nation than we have ever been. As I am sure you all know, serious involvement in anything, not just sports, requires discipline. Please note that Dave Draper echoes a theme of Cerutty's in the last sentence of the following quote,involvement in athletics have benefits that go beyond the physical:
"Discipline is not owned by repeating mantras, reading a book, watching a video or following a formula.
Discipline is founded in need and desire and developed in deed. Discipline is yours.
You want something, if you can't buy it or steal it, you must work for it. The more you want and need it, the harder you try to get it. The wanting and needing, the working, trying and getting combine and eventually present discipline. Great or small, this stoic quality is a benefactor assuring that you become a better person, more complete and capable and aware, as you pursue your healthy and humble goal giving it your very best shot."