We are all of us teachers. Willingly or unwillingly, consciously or not, directly or indirectly, we have a measurable affect on those around us. An anonymous piece of litter can demonstrate carelessness and disregard just as easily as an anonymous donation can demonstrate charity and love. Be mindful of your words and deeds, your lesson plan, for your influence reaches farther than you can know. You do make a difference, you matter. You will not always be successful in your teaching, keep trying anyway.