Pope Pius XI - Public Teaching: "Christ's Peace in Christ's Kingdom"

Public Teaching: "Christ's Peace in Christ's Kingdom"

Pius XI's first encyclical as Pope was directly related to his aim of Christianising all aspects of increasingly secular societies. Ubi arcano, promulgated in December 1922, inaugurated the "Catholic Action" movement.

Similar goals were in evidence in his encyclicals Divini illius magistri (1929), making clear the need for Christian over secular education, and Casti Connubii (1930), praising Christian marriage and family life as the basis for any good society, condemning artificial means of contraception, but also acknowledging at the same time the unitive aspect of intercourse as licit:

• Any use whatsoever of matrimony exercised in such a way that the act is deliberately frustrated in its natural power to generate life is an offense against the law of God and of nature, and those who indulge in such are branded with the guilt of a grave sin.
• Nor are those considered as acting against nature who in the married state use their right in the proper manner although on account of natural reasons either of time or of certain defects, new life cannot be brought forth. For in matrimony as well as in the use of the matrimonial rights there are also secondary ends, such as mutual aid, the cultivating of mutual love, and the quieting of concupiscence which husband and wife are not forbidden to consider so long as they are subordinated to the primary end and so long as the intrinsic nature of the act is preserved.