By MICHIKO KAKUTANI During his training as a Jesuit priest in the 1960s, Jorge Mario Bergoglio — who, decades later, would become Pope Francis — spent three years teaching literature and psychology in his native Argentina. He taught the classics, like “El Cid,” but when his students expressed an interest in authors like Antonio Machado and Fernando de Rojas, he taught them, too, as a way of nurturing a love of literature in his pupils. He also encouraged his students to write, and had his friend Jorge Luis Borges read their stories. This gift for teaching — along with his…