Ideological zealotry and rampant antisemitism are allowed to flourish Yesterday, with growing sadness, I read a wonderful book about teaching and learning, written by one of the great teachers of the past century. Why the sadness? Because the author, Gilbert Highet, was a revered professor at Columbia in the Fifties and Sixties. It is impossible to read his paean to learning, written a half-century ago, without weeping for what his university has become. When Highet wrote of learning, he meant