Pope Pius XII publishes a Holy Year encyclical entiteled "On A Program For Combating Atheistic Propaganda Throughout The World". In it, the pope denies that you can have a well-ordered society without religion.
Pius XII writes:
"Since these innumerable evils spring, as We have said, from one source only, the repudiation of God and contempt for His law, it is necessary, Venerable Brethren, to offer to God fervent prayers and recall all to those principles whence alone can come enlightenment for minds, peace and concord for souls and well ordered justice between the various social classes.
As you know, once religion is taken away there cannot be a well ordered, well regulated society. In this point lies the urgency to spur on priests under your guidance in order that, especially during the Holy Year, they spare no efforts so that souls entrusted to them, with their false prejudices and erroneous convictions cast aside, and hatreds and discords settled, may nourish themselves on the teachings of the Gospel and thus participate in Christian life so as to hasten the desired renewal of morals."