"Against "self-esteem" Briers wants to make the concept of "self-esteem", meaning that they have no basis for their self-image, that you act in order to feel satisfied with their effort.
"If it were possible to wait for the man himself would come into a room," wrote British writer Rebecca West, "so there are not many of us who would feel his heart swell with anticipation when we heard the handle is pushed down."
It is a black and provocative image, but maybe it can be taken as the basis for our efforts to improve ourselves, trying to be such that one feels a thrill of joy when that door opens"