Wu Wei said this quote

A diminished self-image causes us to slouch, to avoid looking others in the eye, to be unassertive, to be indecisive. On the other hand, a healthy self-image causes us to carry ourselves well, to speak confidently and to portray dignity. If we have not taken the time and thought to create a wonderful self-image for ourselves, we have had less, been less, and done less than was possible for us than if we had. We can improve our self-images at any moment including this one.