John Maxwell- The article was stating that it is all abut attitude and whether you want to do something or not.  If you want to make yourself better then do everything you can do to achieve what you want to do.  If you don't want to do something then why did you join the job or thing that you are doing.  You should join something that you enjoy so that you will try and enjoy what you are doing.
Things that are important to you should be things that you want to do.  This article is very important to everyday life and it helps people to do things.  It motivates some people and doesn't do anything to some.  It sometimes just makes people stop what they do.  Then they start something they may not finish.  Then this is worse then where they started.