Some people are upset or fussed up nearly all the time. They are of a nervous, restless disposition. Over the smallest matters they become excited, flustered, fretted. This unfits them for work. None of us can do his work efficiently in a feverish state of mind.
Nothing hinders more in life than nervousness.
It disquiets the mind, so that we cannot think clearly. It weakens us, and makes us susceptible to dark forebodings, yes, and to all sorts of disease germs. The man who accomplishes the most, is the quiet, calm man. He does not fume and froth and fuss over what he has to do, but he gets it done all the sooner and all the better. His state of mind contributes to his physical strength and health.