The Part of You That You Can’t Live Without

An anonymous observer wrote that it "doesn't complain about the condition of the weather, seeks no 'social security' and never asks for a vacation.  It will work best when treated well, but will do its utmost to give good service when working conditions are unduly taxing its strength."  No, it isn't your dog--man's best friend--who sits by the gate and awaits your arrival with wagging tail.  It is your heart, located six inches below your collarbone slightly off-center on the left side of your body.