It is human nature; it is embedded in our intellectual and moral, and even spiritual, code as human beings that we can recognize harm. At a very minimum, we respond to what is pleasant and unpleasant; and the nature of our learning is experiential. So much of what we know or the way we know it is because we have experienced failure, displeasure, harm, or things we have done have had unpleasant consequences. From that, we then come to a conclusion that a particular act, a particular option, a...