Nothing great was ever achieved without it. Lack of enthusiasm has kept many a soul from achieving success. Enthusiasm is the difference between caring and not caring, between interest and disinterest. Many stage performers I know captivate audiences by injecting great enthusiasm into everything they do. Enthusiasm is energy motivated.
Energy is the capability for doing work.
When you work and play you draw upon energy stored within your body. The energy that makes organizations move, depends upon 'individual' enthusiasm. Leaders with bright ideas and the ability to inspire high thought and action in others are the main generators of energy. Their individual brand of enthusiasm rubs off onto other people and inspires them to greater works. There are untapped sources of energy within all of us.