The _history of religion_ and _anthropology_ must be forbidden to assume that the human mind is but a product of animal evolution, that therefore religion and morality, family and state life, reason and language, and the entire intellectual and social life have necessarily evolved from the first stages of animal life. If we add that _jurisprudence_ in its highest principles comes in touch with faith, and that it also must not dispute the divine right of the Church, we have mentioned the most important sciences and instances in which the investigator must take faith into consideration. We now understand in what sense we may rightly speak of a “_Christian philosophy and science_” or of a “_Catholic science of history_.” Surely not in this sense that philosophy and history have to draw their results from Holy Scripture or from the dogmatical decisions of the Church; nor in the sense that they have to make positive defence for everything that the Church finds it necessary to prescribe. The sense is merely this: they guide themselves by faith, as we said above, by refraining from propositions and presumptions proved by faith to be false. In a large measure this is also the meaning of the often-misrepresented term, _Catholic University_. In the reverse sense we may speak of a liberal science. It is that science which in the field of philosophy and religion guides itself by the principles of liberalism and the principle of liberal freedom and the rejection of faith. But to speak of a Catholic, Protestant, Liberal chemistry or mathematics, has no sense at all, because these disciplines, like most other profane sciences, have no direct connection with Catholicism, Protestantism, or Liberalism. That we have stated correctly the _attitude of the Catholic Church_ is evidenced by more than one official document. In the decree of the Holy Office of July 3, 1907, the so-called Syllabus of _Pius X._, the following (5.) proposition is condemned: “Inasmuch as the treasure of faith contains only revealed truths, it does not behoove the Church under any consideration to pass judgment on the assertions made by human sciences.” Similarly was the proposition (14), likewise condemned in the Syllabus of _Pius IX._: “Philosophy must be pursued without any regard to supernatural revelation.”