There is a big difference between the person that builds the skyscraper and the person that does the maintenance. Most of us empty the trash and change the lig

There is a big difference between the person that builds the skyscraper and the person that does the maintenance. Most of us empty the trash and change the lightbulbs and think we are structural engineers. I'm ok with what I do, but I don't pretend I'm something I am not.