When I first encountered the Persian word mofangi, I struggled to grasp its meaning. It implies a certain timidity, physical weakness, and awkwardness. Seeking to put some flesh on that definition, my language tutor told me to envision Grand Ayatollah Hosein Ali Montazeri. "He's more than a little mofangi," remarked the tutor, expressing the condescension that well-educated, leftwing Iranians often have for the clergy who stole their revolution. That was in the mid 1980s, and Montazeri was the number two cleric in Iran, a mullah who once passionately believed in exporting Iran's revolutionary tumult and was instrumental in building the...