intro
Stress is laid on the great contrast between the scholar (particularly the philosopher) and the popular lecturer (the sophist). Then as now, it seems, people were not always willing to listen patiently to the scholar, but more often inclined to resort to lectures of the lighter and more entertaining sort. In this matter, as in many others, Plutarch marks the distinction of character—the character of the lecturer, and the effect of the lecture on the character of the hearer. The sophists, having no particular character themselves and being below the general average of mankind, can do little or nothing to improve the character of their hearers, but, on the other hand, practically everything that the scholar says or does has its value for the upbuilding of character if only one have the ability to profit by it.
intro
Proper behaviour in the lecture-room is the main theme of the essay. No lecture can be so bad that it contains nothing good, and while the lecture itself must be subjected to unsparing criticism, the lecturer must always be treated with kindly consideration, and must not be disturbed by any improper behaviour on the part of his audience.