Discipline is the secret to success. I know that everyone knows this, but the problem is that the follow through is so difficult. It is easy to think and plan to be disciplined, but the follow through can be tough.
I think this is where people need to find a really good support team to rely on. You cannot do it all alone and having accountability to another person can be really valuable.
I also think that understanding the long term gains of success is something to be respected. People do not become the best at what they do overnight, and if they do, they are the exception and certainly not the rule.