Knowing and Remembering Torah
The importance of having the necessary background knowledge in order to learn Torah. The obligation of a Rebbe to explain repeatedly to one whose capacity for understanding is limited. The obligation to “fix” a wayward Talmid. The importance of a Rav treating his talmidim properly, and for a talmid to exert himself to make sure that the relationship is good. Acute knowledge and its effect on memory and recall.
Citations: In addition to the commentary of the Vilna Gaon, this shiur references Gemara Ta’anis 7b-8a with Rashi and Maharsha, Sefer Zohar HaKadosh Ki Sissa 190a, Sefer Dvash L’Fi (Chida) Ma’a