This explains that if you work hard enough to reach your goals and accomplish them you'll get what you deserve out of it. If you dream of being an athlete, but never out time and effort into it then you most likely won't be one. If you want to be a doctor but don't go to school for it or take any classes on how to be a doctor you won't be. By doing bad in school and never putting effort into your school work or even quitting school, you will not pass. If you don't pass then you won't graduate. By not graduating you can't get your diploma or get to go to collage you won't be able to get the high paying job you want or what you've always wanted to do.
If you're mean to people or treat people wrong chances are they're gonna treat you the same way. If you're nice to them and treat them the way you'd want to be treated, they most likely will be nice if you are.