Christ's commandment to hear the Church . . . is binding on all men, in every period, and every country.
Pope Pius XIThese principles with due regard to time and place, must, in accordance with Christian prudence, be applied to all schools, particularly in the most delicate and decisive period of formation, that, namely, of adolescence; and in gymnastic exercises and deportment special care must be had of Christian modesty in young women and girls which is so gravely impaired by any kind of exhibition in public.
Pope Pius XIIn the present state of human society, however, We deem it advisable that the wage-contract should, when possible, be modified somewhat by a contract of partnership, as is already being tried in various ways to the no small gain both of the wage-earners and of the employers. In this way wage-earners are made sharers in some sort in the ownership, or the management, or the profits.
Pope Pius XIFor they have always unanimously maintained that nature, rather the Creator Himself, has given man the right of private ownership not only that individuals may be able to provide for themselves and their families but also that the goods which the Creator destined for the entire family of mankind may through this institution truly serve this purpose.
Pope Pius XIMan cannot be exempted from his divinely-imposed obligations toward civil society, and the representatives of authority have the right to coerce him when he refuses without reason to do his duty. Society, on the other hand, cannot defraud man of his God-granted right... Nor can society systematically void these rights by making their use impossible.
Pope Pius XI