His posthumous masterpiece deserves to become a foundation text for Eurosceptics not just in Britain, but right across the continent. It is important that it should do so. The battle to reclaim parliamentary democracy should not just belong to the Right-wing (and sometimes fascist) political parties. The Left and Right can disagree – honourably so – on many great issues. But surely both sides of the ideological divide can accept that democracy is still worth fighting for, and that the common enemy has become the European Union.