Elizabeth Gaskell said this quote

Was it a doubt - a fear - a wandering uncertainty seeking rest, but finding none - so tear-blinded were its eyes - Mr. Thornton, instead of being shocked, seemed to have through that very stage of thought himself, and could suggest where the exact ray of light was to be found, which should make the dark places plain. Man of action as he was, busy in the world's great battle, there was a deeper religion binding him to God in his heart, in spite of his strong willfulness, through all his mistakes, than Mr. Hale ever dreamed.