I only wish others such as myself, were so gentle and knowledgeable as GDR.
I don't know about the gentle part but I really want to say that I don't lay claim to being knowledgeable. I'm very much a lay person and whatever knowledge I have has come from reading the works of people who really are knowledgeable. I'm probably one of the few people on this forum without a university education.
As a foot note I would add this. It seems to me that who we are and why we are here is the biggest and most interesting question that we can attempt to answer. In one way what makes it most interesting is that the clues to truth can be found in all fields of human endeavour and that we can't have absolute proof of our conclusions.