What benefits can accrue from Torah when one swears off benefit from a given person? The Gemara shows the monetary loss. Plus, the dispute over whether teachers of children are paid for childcare or for teaching them skills. Also, analysis of the dispute. Plus, what about girls, when boys were the only ones in school? Also, how do the ta'amei hamikra (trop) fit in? Aren't they part of the text, essentially?