"All too often, however, in the history of the United States, the schoolteacher has been in no position to serve as a model for an introduction to the intellectual life. Too often he has not only no claims to an intellectual life of his own, but not even an adequate workmanlike competence in the skills he is supposed to impart. Regardless of his own quality, his low pay and common lack of personal freedom have caused the teacher’s role to be associated with exploitation and intimidation."