"An imaginary circle of empathy is drawn by each person. It circumscribes the person at some distance, and corresponds to those things in the world that deserve empathy. I like the term "empathy" because it has spiritual overtones. A term like "sympathy" or "allegiance" might be more precise, but I want the chosen term to be slightly mystical, to suggest that we might not be able to fully understand what goes on between us and others, that we should leave open the possibility that the relationship can't be represented in a digital database."