Abstract
I am immensely thankful for and humbled by the time and effort these excellent contributors have expended in commenting upon my book. They have given me much to think about and made me realise that there were several places where my thoughts could have used more development or clarification. I will do my best here to provide those. Sometimes, it will be a matter of pointing out other places in the book where the issue was addressed, with the acknowledgment that if my interlocutor missed the connection, it is entirely my fault for not having drawn it more clearly.