We were struck by passages in President Donald Trump’s inaugural address this afternoon, especially the ode to solidarity. One imagines that Stephen Bannon, one of Trump’s close advisers and a student of sorts of the Church’s social doctrine, was responsible for that argument. It seems, however, like a good moment to recall what Leo XIII said in Au milieu des sollicitudes (the “Ralliement encyclical”):

First of all, let us take as a starting-point a well-known truth admitted by all men of good sense and loudly proclaimed by the history of all peoples; namely, that religion, and religion only, can create the social bond; that it alone maintains the peace of a nation on a solid foundation. When different families, without giving up the rights and duties of domestic society, unite under the inspiration of nature, in order to constitute themselves members of another larger family circle called civil society, their object is not only to find therein the means of providing for their material welfare, but, above all, to draw thence the boon of moral improvement. Otherwise society would rise but little above the level of an aggregation of beings devoid of reason, and whose whole life would consist in the satisfaction of sensual instincts. Moreover, without this moral improvement it would be difficult to demonstrate that civil society was an advantage rather than a detriment to man, as man.

Now, morality, in man, by the mere fact that it should establish harmony among so many dissimilar rights and duties, since it enters as an element into every human act, necessarily supposes God, and with God, religion, that sacred bond whose privilege is to unite, anteriorly to all other bonds, man to God. Indeed, the idea of morality signifies, above all, an order of dependence in regard to truth which is the light of the mind; in regard to good which is the object of the will; and without truth and good there is no morality worthy of the name. And what is the principal and essential truth, that from which all truth is derived? It is God. What, therefore, is the supreme good from which all other good proceeds? God. Finally, who is the creator and guardian of our reason, our will, our whole being, as well as the end of our life? God; always God. Since, therefore, religion is the interior and exterior expression of the dependence which, in justice, we owe to God, there follows a grave obligation. All citizens are bound to unite in maintaining in the nation true religious sentiment, and to defend it in case of need, if ever, despite the protestations of nature and of history, an atheistical school should set about banishing God from society, thereby surely annihilating the moral sense even in the depths of the human conscience. Among men who have not lost all notion of integrity there can exist no difference of opinion on this point.

(Emphasis supplied.)