I am searching for a book on heresies that I bought in the mid-80s from a clearance shelf at book store. It was unique in that gave a history of all Christian heresies through the ages from a sympathetic view. The premise of the book was that the motives of the people who started the heresies where good even if their teachings were flawed. I considered the book to be a treasure as a reference book because it was fair to each heresy and gave context and reasons why and how the heresies were formed. Unfortunately, I loaned it out and now I have no idea where it is. I though the name of the book was "Heretics" , but Google is coming back with more recent or much older books by those names, and none that are as comprehensive as the volume I am looking for. The book by G.K. Chesterton is not the one I am thinking of. The one I am looking for was laid out in chronological order and explains each one, their founders and the context from which they sprang up. The author made a point to hide his Church affiliation, though I presume he was a protestant of some stripe. Any help would be appreciated.