Nor have I told of the times when David held me rapt with stories of the 10,000 devils of Tantric Buddhism, or the 60 times 10,000 angels mentioned in the Sefer ha Rezin, a book that was written by the angel Raziel and given to Noah. Yet, I believe that my readers have now achieved a good grasp of the lighter side of David, of his professional knowledge and how he provided me with many hours of entertainment.