Pope Francis shared his views on celibacy, and the possibility of church discussion on the topic, when he was the Archbishop of Buenos Aires, recorded in the book "On Heaven and Earth", a record of conversations conducted with a Buenos Aires rabbi. He commented that celibacy "is a matter of discipline, not of faith. It can change" but added: "For the moment, I am in favor of maintaining celibacy, with all its pros and cons, because we have ten centuries of good experiences rather than failures... Tradition has weight and validity." He said that now the rule must be strictly adhered to, and any priest who cannot obey it "has to leave the ministry." "National Catholic Reporter" Vatican analyst, Jesuit Thomas J. Reese, called Bergoglio's use of "conditional language" regarding the rule of celibacy "remarkable." He said that phrases like "for the moment" and "for now" are "not the kind of qualifications one normally hears when bishops and cardinals discuss celibacy."