Cupich of Chicago stated that Amoris laetitia "represents a major shift in our ministerial approach that is nothing short of revolutionary." Referring to critics of Amoris laetitia, Cupich said, "Instead of actually attending to the present reality of people’s lives today in all its complexity, they limit their scope to an idealistic understanding of marriage and family." In reply, Cardinal Müller wrote in February 2018 that, when understood in the sense of a "fundamental change in theoretical forms of thought and social behavior," there can be no paradigm shifts in the Catholic faith. Müller wrote that "a paradigm shift, by which the Church takes on the criteria of modern society to be assimilated by it, constitutes not a development, but a corruption." Müller also wrote that Familiaris Consortio established the discipline "that the divorced living in a new union must resolve to live in continence or else refrain from approaching the sacraments," and that any claim that Familiaris Consortio anticipated a change in this discipline "would have to violate the basic rules of logic." In May 2018, Archbishop Vincenzo Paglia, President of the Pontifical Academy for Life, compared the controversy surrounding Amoris laetitia to that generated by Humanae vitae in the 1960s. Paglia stated that the care for injured family relationships found in Amoris laetitia is rooted in the teaching of Humane vitae on the "inseparable connection" between nuptial sexuality and responsible generation. Paglia wrote that, without wanting to furnish a new general norm, Pope Francis invited the whole Church to make further personal and pastoral discernment, which foresees, within a path of pastoral accompaniment and in specific cases, the possibility that a divorced and remarried couple access the sacraments, while maintaining a conjugal life to all intents and purposes. Paglia wrote that Pope Francis' primary concern is the pastoral care of the family and that he does not deny or even diminish the commandment of conjugal fidelity because the work of personal and pastoral discernment may come to recognize that in an objective situation of sin a person may not be subjectively guilty. In August 2018, Pope Francis wrote to English author Stephen Walford, giving the following explanation for Amoris laetitia: The same month, Cardinal Scola publicly expressed for the first time his opposition to the communion of the divorced and civilly remarried unless they live in complete continence. According to Scola, the removal of this prohibition would be