 But writers on the left have found value in some conservative ideas. Raymond Williams’ Culture and Society (1971) begins by showing the lessons that Burke offers. And while rejecting its conclusion that change can only be piecemeal, many on the left share conservatism’s distrust of rational planning. While Lenin aimed to impose a socialist blueprint through a vanguard party of specialists, his Marxist critics Luxemburg and Kollontai held that revolutionary tasks are unknowable in advance: