God did not create a human family made up of segregated, dissociated, mutually independent members. No; he would have them all united by the bond of total love of Him and consequent self-dedication to assisting each other to maintain that bond intact.
Pope Pius XIITeaching Authority of the Church does not forbid ... research and discussions ... with regard to the doctrine of evolution.
Pope Pius XIIThat which does not correspond to the truth or to the moral norm possesses, objectively, no right either to existence or to propagation or to action.
Pope Pius XIIThe most insidious of sophisms are usually repeated to justify immodesty and seem to be the same everywhere.
Pope Pius XIISome say they are not bound by the doctrine which teaches that the Mystical Body of Christ and the Roman Catholic Church are one and the same thing. Some reduce to a meaningless formula the necessity of belonging to the true Church in order to gain eternal salvation. Others finally belittle the reasonable character of the credibility of Christian Faith. These and like errors, it is clear, have crept in among certain of our sons who are deceived by imprudent zeal for souls or by false science.
Pope Pius XII