Many people email or write in order to tell me what they think of my ideas. I welcome such messages – some more than others, obviously. But since email makes it easy for people all over the world to contact me, I no longer have time to reply to such messages. Nor am I able to assist students, other than those from Princeton University, with queries arising from papers or assignments. Regrettably, I can't be an individual teacher to everyone. If you write to me with questions about your essay or project, you will NOT get an answer. Perhaps my replies to FAQ will help you with your query.