“Apply the blacksmith's homely principle when you are speaking. If you feel deeply about your subject you will be able to think of little else. Concentration is a process of distraction from less important matters. It is too late to think about the cut of your coat when once you are upon the platform, so centre your interest on what you are about to say—fill your mind with your speech-material and, like the infilling water in the glass, it will drive out your unsubstantial fears.”