On this occasion, we wish to draw the attention of educators, and of all who perform duties of responsibility in regard to the common good of human society, to the need of creating an atmosphere favorable to education in chastity, that is, to the triumph of healthy liberty over license by means of respect for the moral order.
Everything in the modern media of social communications which leads to sense excitation and unbridled customs, as well as every form of pornography and licentious performances, must arouse the frank and unanimous reaction of all those who are solicitous for the progress of civilization and the defense of the common good of the human spirit. Vainly would one seek to justify such depravation with the pretext of artistic or scientific exigencies, or to deduce an argument from the freedom allowed in this sector by the public authorities.
To Rulers, who are those principally responsible for the common good, and who can do so much to safeguard moral customs, we say: Do not allow the morality of your peoples to be degraded; do not permit that by legal means practices contrary to the natural and divine law be introduced into that fundamental cell, the family. Quite other is the way in which public authorities can and must contribute to the solution of the demographic problem: namely, the way of a provident policy for the family, of a wise education of peoples in respect of moral law and the liberty of citizens. – from Humane Vitae (1968)
