 This theme of reciprocity imbues John’s corpus, employed in his correspondence and forming the basis of his organic metaphor for the polity (addressed below) (see JL1: 181). In the Metalogicon, this universal model of mutual interconnection indicates the natural course which ought to guide human behavior: “[I]t is not possible even to imagine a kind of blessedness which knows nothing of communion or exists outside society”, John declares, because nature decrees that earthly happiness derives from human association (ML: 125). To imperil society by assailing man’s capacity to improve his rational powers—an accusation which John levels against Cornificius—is thus to cut man off from the happiness which God has allotted to him in the present life, as well as to exclude the possibility of fulfilling the terms of divinely bestowed grace.