One class of college instructors dislikes teaching introductory courses: big, unwieldy things, necessarily intellectually irresponsible because they must perforce skim over many topics, treating each but superficially, they demand that we doff our rigor and strike an undignified pose for the benefit of students who, honestly, are just trying to fulfill a distribution requirement and can’t be bothered.

Another class of college instructors enjoys teaching introductory courses: big, theatrical things, restricted of necessity to mere snippets and adumbrations, they afford us an opportunity to provide a glimpse of the problems that draw us in to scholarly work without dwelling on the labor involved in working out such a problem thoroughly; they demand that we express ourselves plainly to nonspecialists and challenge us to intrigue students who don’t have a native interest in the subject.

Suppose only one of these classes truly understands the introductory course. Which is it?