Student or Learner
What is "untold wisdom"? Is it the capability of the lecturers? Really hard to understand.
ex) Students who "tweet" during class might not be ignoring the lecturers' untold wisdom - they might be assessing the quality of the teaching. The micro-blogging website Twitter has turned out to be a useful way for academic institutions to gather course data as a term progresses.....
The contrast is between the Establishment view ('How dare they pass notes when they should have their attention avidly focused on collecting their lecturers' pearls of wisdom? They can play around with Twitter in their own time) and the view that Twitter adds to their critical experience.