In the course of every hack writer's life, with any luck, a great editor will appear. In my fortunate case that editor was Manuela Hoelterhoff, who died May 6 from cancer. She was 77. We were entirely different people. She was born in Hamburg just after World War II (or 11, as our better public intellectuals might put it). Her father was one of 5,000 or so German survivors of the Battle of Stalingrad, where hundreds of thousands of fellow soldiers died. After the family came to America, her