“If you are struck by a bus, someone may steal your purse or wallet while you lie injured, but many more will come to your aid, trying to save your precious life. One person will call 911, and another will race down the street to alert a police officer on his or her beat. Someone else will take off his coat, fold it, and place it under your head, so that if these are indeed your last moments of life you will die in the small but real comfort of knowing that someone cared about you.”
