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When does personal knowledge surpass testimony? The shiur explores whether Rashi (רש"י) and the Rambam (רמב"ם) disagree fundamentally about the nature of eidus — Rashi seeing it as objective truth that surpasses personal knowledge, while the Rambam views eidus as mere legal presumption (gezerat hakatuv) that personal knowledge can exceed.
The shiur opens with analysis of Kesubos 9a's case of pesach (פסח) pasuach matzosi ("I found her not to be a virgin"), examining Rashi (רש"י)'s puzzling language about the absence of witnesses. Rabbi Zweig suggests that Rashi distinguishes this case from normal eidus because determining virginity requires physical examination, not visual testimony — creating a category outside traditional eidus requirements. The discussion transitions to explore a fundamental machloket between Rashi and the Rambam (רמב"ם) regarding the nature of shavya nafshe chatichadi l'isura (one who renders himself liable for prohibition). Rashi appears to view personal admission as inferior to eidus, while the Rambam suggests the opposite. This leads to analysis of the Rambam in Hilchos Ishus where someone claiming to be a kohen receives malkus for living with a divorcee, yet the Rambam doesn't require him to divorce her.
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Why does halacha forbid entering dangerous places if everything happens by Divine decree? The shiur examines the debate between Rashi and Tosfos on traveling at night, developing a fundamental distinction: Rashi holds one must avoid even deserved punishments that Hashem delays through mercy, while Tosfos holds the prohibition addresses self-inflicted harm through free will. This framework reveals how people rationalize self-destructive behavior as "hashgacha."
Why does the Gemara praise hospitality to scholars as a unique mitzvah rather than ordinary hachnasas orchim? The shiur distinguishes two mitzvahs: hachnasas orchim (providing for those in need) and connecting to talmidei chachamim (cleaving to God through scholars). Yisro's meal for the Jewish leaders wasn't charity—it was his way of bonding with those transformed by Torah, teaching that learning must fundamentally change who we are.
Kesubos 9a
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