Don’t ban Russia’s culture

Sir: It is uncouth, illiterate and actually beneficial to Putin when theatres, opera houses and other cultural institutions in Britain and across the globe block access to these heights of culture (‘Theatre of war’, 14 May). During Stalin’s last decade and throughout the Cold War, Isaiah Berlin was a superb help to this country and to Russia through his connection with Anna Akhmatova, including the award to her of an honorary doctorate at New College, Oxford, in June 1965, the year before her death.