Politics is not a self-enclosed activity, organically generating a body of concepts internal to it. What counts as a set of ideas with a bearing on t… - Perry Anderson

Polemical zeal can produce an fixation on the other side, or sides, of purely hostile intent.

Rawls resorted to Hegel in his internal reflections on a constitutional state. On the plane of inter-state relations, Kant remained his philosopher of reference, as the theorist of conditions for a perpetual peace. So too for Habermas. But since Kant failed to envisage the necessary legal framework for a cosmopolitan order, as it started to take shape through the permanent institutions of the United Nations, Habermas, when he came to review the progress made since 1945, also looked towards the philosopher of objective idealism. Measured against the sombre background of the disasters of the first half of the twentieth century, he decided, ‘the World Spirit, as Hegel would have put it, has lurched forward’. As we have seen, Bobbio was responsible for the most pointed appeal to Hegel of all. In one sense, he was more entitled to do so.

The dichotomies which are the signature of their work – the esoteric and the exoteric, the civil and the managerial, the friend and the foe, the lawful and the legislative – are so many cordons. Their function is to hold popular sovereignty at bay. The different gifts displayed in this enterprise, whatever view is taken of it, were remarkable. For all his later tendency to textual dressage, Strauss's range and subtlety as a master of the canon of political philosophy had no equal in his generation. Schmitt's moral instability never impaired an extraordinary capacity to fuse conceptual insight and metaphoric imagination in lightning flashes of illumination around the state. Hayek could seem tactically ingenuous, but he fashioned a theoretical synthesis out of his epistemology and economics whose scope and strength has yet to be supplanted. Oakeshott was the literary artist in this gallery. His writing varies considerably in quality, and can be whimsically arch at one moment and curiously crude at another, disconcertingly close to Punch or Cross-Bencher. But at its best, when it moves into high register, it can rise to a lyrical beauty.