How can something so physically small, perhaps even non-existent have so much power over something so large?
"I had not known before how usual and necessary a thing it is... to gaze straight at anybody to whom one is speaking and to gaze with no embarrassment... He is aware of just what he looks like: therefore you feel intensely that he is aware that you are aware, and that some unguarded glance of yours may cause him hurt. This, then, is the patient at whom you are afraid to gaze unflinchingly; not afraid for yourself but for him."Ward Muir, The Happy Hospital, 1918 (On looking at patients with facial wounds)