Hobbes’s theory of authorisation poses numerous puzzles to scholars. The weightiest of these conundrums is a supposed contradiction between chapter 17 of Leviathan, that calls for unconditional submission to the sovereign, and chapter 21, that defends the liberties of the subject. This article offers a fresh perspective on the theory’s consistency, function and addressees. While existing research doubts the theory’s consistency, focuses on its immunisation function and on the subjects as the theory’s main addresses, the paper argues that Hobbes’s theory of authorisation is consistent with the doctrine of the liberty of subjects, and that it serves the dual purpose of immunising the sovereign against criticism and disciplining the sovereign via a counsel of memento mori: A hitherto underexplored element of authorisation theory is a reminder of the mortality of sovereignty directed at the sovereign to convince him to make restricted use of his absolute right to rule. Hobbes’s theory of authorisation can thus be read as part of a complex argumentative strategy for peace, rooted in a ‘liberal absolutism’ which is not as paradoxical as it sounds, and which is reflected in the frontispiece by the friendly smile of the sovereign.