" If all you want out of sport is a bit of relaxed fun, then your approach should be entirely different from someone who wants to reach the top. It is important to realise that excellence demands complete dedication: if you want to be a top athlete, then training to be a top athlete must be the most important thing in your life. If your career or family are more important than your sport, then you will find it difficult to devote the time and dedication you need to achieve excellence to the sport, unless you have a very sympathetic boss or family.
Once you have decided how committed you are, adjust your training and expectations appropriately. "
It does make some serious sense.