It's a post at MTC. It begins:
When Isaac Newton went to the University of Cambridge several centuries ago, he studied seven days a week, at least ten hours a day, and actively avoided the revelry that some Cambridge undergraduates engaged in even then. No one expects American undergraduates to work as hard as Isaac Newton or as medieval monks. However, what seems to be happening on many American college campuses is the development of such a powerful "fun" culture that a quarter of the students or more arrive thinking that having fun is the main reason they are at college and that the pursuit of knowledge should be resorted to only when they have nothing better to do.
There was a time when the upper classes approached college casually, more as a rite of passage than anything else because they were confident about their futures, while the aspiring classes put their noses to the grindstone the way Newton did. That was in a time, however, when probably 1% or less of the population even considered higher education. It has been democratized, which might be another way of saying that many colleges are now glorified high schools.