Nygren's book is a crock. He misreads Catholicism right and left out of Reformation and secular/modern polemics. Moreover, most well-read Lutheran and Reformed theologians recognize that Nygren caricatured things, set up a straw-man Catholic eros in order to knock it down. Anyone who has read Augustine carefully recognizes that the very center of his entire theolgy is caritas, the Latin equivalent of Agape, but that he does not pit eros against agape. They are distinct but not inimical. Nygren could not see his way to keep them from being at least in part inimical. That was his fatal error. He distorts eros as much as he distorts agape.