Books: Keyserling

Ten years ago Germany's Count Hermann Keyserling made a triumphal tour of the U. S., buoyed up by his best-selling Travel Diary of a Philosopher, fees reaching as high as $1,000 a lecture, and praise such as Glenn Frank's: "Keyserling may turn out to be a John the Baptist of a new Western civilization." On that trip hostesses received printed instructions on how to entertain the worldly prophet: 1) rooms should be cool; 2) a supper should be served after each lecture; 3) champagne should be provided; 4) oysters should be served, but...