Today, 20 Tevet, is the 819th Yahrzeit of the “Great Eagle” Maimonides. That amount of time may surprise those of us for whom Rambam is a daily, living companion. To mark the occasion we release open-access Michael A. Shmidman’s recent essay, “Isadore Twersky’s Unique Contribution to The Guide of the Perplexed” (TRADITION, Summer 2023).