Popular tradition holds that St. Anthony taught a prayer to a poor woman who sought help against the temptations of the devil. The Franciscan Pope Sixtus V had the prayer — also called “the motto of St. Anthony” — engraved into the base of the obelisk erected in St. Peter’s Square in Rome. In the original Latin, the prayer says Ecce Crucem Domini!  Fugite partes adversae!  Vicit Leo de tribu Juda,    Radix…