Ever since the attacks of 11th September, western leaders have described a world engaged in 'a fight for civilization'. But what do we mean by civilization? We believe in a western tradition of openness and freedom that has produced a good life for many millions of people and a culture of enormous depth and creative power. But the history of our civilisation is also filled with unspeakable brutality - for every Leonardo there is a Mussolini, for every Beethoven symphony a concentration camp, ...