“One of the things I learned very early is that students always recognize a good teacher. They may be overimpressed by second-raters who only talk a good game, who are witty and entertaining, or who have reputations as scholars, without being particularly good teachers. But I have not come across a single first-rate teacher who was not recognized as such by the students. The first-rate teacher is often not ‘popular’; in fact, popularity has little to do with impact as a teacher. But when students say about a teacher, ‘We are learning a great deal,’ they can be trusted. They know.”
Peter F. Drucker, Adventures of a Bystander