This chapter assesses how security was established as the first absolute and natural right of the subject. Thomas Hobbes remains in focus, insofar as he articulated the furthest what had already become an established dogma of early modern thought, notably in natural right theories, and of nascent state practice. The chapter then considers the different kinds of natures that troubled the enterprise of naturalisation. For nature was also appearing, as a result of the scientific revolution, as a source of disorder. It was no longer simply the stable referent for the task of political ordering. This new, epochal instability in the constructions of nature and the way it was addressed by Hobbes in his epistemological writings contains resources for short-circuiting the naturalising work that Hobbes, amongst others, was engaged in. These resources include Hobbes’s nominalism, which marks him as the original constructivist, and his critique of universals, including ‘paternal dominion’, his term for patriarchy. Hence, the purpose of the chapter is to parse the initial naturalisation of security as the subject’s constitutive right, in order to denaturalise it. Ultimately, Hobbes played a central role, not only in theorising the state, but in securing what the author seeks to unsettle with this book: the body as history’s great naturaliser.