Curt Leviant

YOM KIPPUR

One day, more than two decades ago, I walked into a Jerusalem bookstore — and stepped into a mystery. At the store, I met a man who was shopping named Reb Moshe Ashbel, an elderly, white-bearded Russian immigrant. As we got to know each other, Ashbel told me that he was a Lubavitch Hasid, a mathematician, and a lover of classical and