Book excerpt: Conklin's thesis is that the tradition of modern legal positivism, beginning with Thomas Hobbes, postulated different senses of the invisible as the authorising origin of humanly posited laws. Conklin re-reads the tradition by privileging how the canons share a particular understanding of legal language as written. Leading philosophers who have espoused the tenets of the tradition have assumed that legal language is written and that the authorising origin of humanly posited rules/norms is inaccessible to the written legal language. Conklin's re-reading of the tradition teases out how each of these leading philosophers has postulated that the authorising origin of humanly posited laws is an unanalysable externality to the written language of the legal structure. As such, the authorising origin of posited rules/norms is inaccessible or invisible to their written language. What is this authorising origin? Different forms include an originary author, an a priori concept, and an immediacy of bonding between person and laws. In each case the origin is unwritten in the sense of being inaccessible to the authoritative texts written by the officials of civil institutions of the sovereign state. Conklin sets his thesis in the context of the legal theory of the polis and the pre-polis of Greek tribes. The author claims that the problem is that the tradition of legal positivism of a modern sovereign state excises the experiential, or bodily, meanings from the written language of the posited rules/norms, thereby forgetting the very pre-legal authorising origin of the posited norms that each philosopher admits as offering the finality that legal reasoning demands if it is to be authoritative.