On 11 November 1942, with the Second Battle of El Alamein just won, Winston Churchill stood in the House of Commons and warned that winning was going to be harder than losing had been. He arrived at the line through Walt Whitman: "it is provided in the essence of things that from any fruition of success, no matter what, shall come forth something to make a greater struggle necessary." Then his own words — the problems of victory are more agreeab…