Confucius once remarked that rulers need three resources: weapons, food and trust. The ruler who cannot have all three should give up weapons first, then food, but should hold on to trust at all costs: 'without trust we cannot stand'.(1) Machiavelli disagreed.
Ernest Gellner, who died on 5 November 1995, was one of the great polymaths of the century. Many of his twenty books were concerned with philosophy, sociology and anthropology. Yet at the core of his work was an historical question.