6 If We look into the kind of life men lead everywhere, it would be impossible to avoid the conclusion that public and private morals differ much from the precepts of the Gospel. Too sadly, alas, do the words of the Apostle St. John apply to our age, "all that is in the world, is the concupiscence of the flesh, and the concupiscence of the eyes and the pride of life." (1) For in truth, most men, with little care whence they come or whither they go, place all their thoughts and care upon the weak and fleeting goods of this life; contrary to nature and right reason they willingly give themselves up to those ways of which their reason tells them they should be the masters. It is a short step from the desire of luxury to the striving after the means to obtain it. Hence arises an unbridled greed for money, which blinds those whom it has led captive, and in the fulfilment of its passion hurries them madly along, often without regard for justice or injustice, and not seldom accompanied by a disgraceful contempt for the poverty of their neighbour. Thus many who live in the lap of luxury call themselves brethren of the multitude whom in their heart of hearts they despise; and in the same way with minds puffed up by pride, they take no thought to obey any law, or fear any power. They call self love liberty, and think themselves "born free like a wild ass's colt. " (2) Snares and temptation to sin abound; We know that impious or immoral dramas are exhibited on the stage; that books and journals are written to jeer at virtue and ennoble crime; that the very arts, which were intended to give pleasure and proper recreation, have been made to minister to impurity. Nor can We look to the future without fear, for new seeds of evil are sown, and as it were poured into the heart of the rising generation. As for the public schools, there is no ecclesiastical authority left in them, and in the years when it is most fitting for tender minds to be trained carefully in Christian virtue, the precepts of religion are for the most part unheard. Men more advanced in age encounter a yet graver peril from evil teaching, which is of such a kind as to blind the young by misleading words, instead of filling them with the knowledge of the truth. Many now-a-days seek to learn by the aid of reason alone, laying divine faith entirely aside; and, through the removal of its bright light, they stumble and fail to discern the truth, teaching for instance, that matter alone exists in the world; that men and beasts have the same origin and a like nature; there are some, indeed, who go so far as to doubt the existence of God, the Ruler and Maker of the World, or who err most grievously, like the heathens, as to the nature of God. Hence the very nature and form of virtue, justice, and duty are of necessity destroyed. Thus it is that while they hold up to admiration the high authority of reason, and unduly elevate the subtlety of the human intellect, they fall into the just punishment of pride through ignorance of what is of more importance.
Source: Exeunte Iam Anno (Vatican.va)