Or, do they seek to save themselves by asserting that a divine revelation and the founding of an infallible Church are _impossible_? Very well, then, let them prove it. On this the question hinges. If they can prove it to us, that very moment we shall cease to be faithful Catholics, and Christianity will have been the most stupendous lie in history. But if the reverse is the case, then all declamations in the name of free research fall to the ground. This impossibility, however, could only be proved by the aid of a presumption. This presumption is _atheism_, which denies the existence of a personal God, or at least doubts it. If it is admitted that there is a personal God, then it is self-evident that He can give a revelation, and found an infallible Church, and can oblige all to believe. But herewith collapses also the liberal principle that, in reasoning, one may reject an external authority. Hence the principle of liberal freedom in science can only then be taken seriously, when one advances to atheism. Then, of course, they will say with _Nietzsche_: God is dead; long live the transcendental man! Our assertions are proved by experience. At the end of the eighteenth century the enlightenment began by excluding all revelation; but it was desired to retain the rational truth of God’s existence. Since then, liberal science has been aiming at atheism in philosophy, whether open or masked. And if we follow up the career of men who have left their faith, we shall soon find that if they do not seek peace in the sheltering harbour of thoughtlessness, they have reached the terminal station of atheism. There is no stopping on this incline. Since it is the express fundamental principle of the liberal freedom of research, that science is not bound to any external authority, it is evident that it is nothing else but the refusal to submit to God’s authority, hence, also, to submit to truth if it appears as revelation. For, either it is admitted that if there is a divine revelation, we have to give it our assent—and in this event liberal freedom of science would have to be abandoned,—or this liberal freedom is adopted in real earnest—then it must be admitted that it is tantamount to _radical apostasy and defection from the truth_. If a man wishes to be a faithful Christian and at the same time to uphold the liberal freedom of science, then he has never made clear to himself what he wishes. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ _Ecce ancilla Domini._ Thus spoke the Mother of the Lord, when she heard the message that she was to receive the Word of the eternal Father in her bosom. This word of humility and submission was the condition under which she could receive in herself the eternal Wisdom of the Father.