Pope Pius X
Pascendi Dominici Gregis §14
Pascendi Dominici Gregis: On the Doctrines of the Modernists
14 Thus far, Venerable Brethren, of the Modernist considered as Philosopher. Now if we proceed to consider him as Believer, seeking to know how the Believer, according to Modernism, is differentiated from the Philosopher, it must be observed that although the Philosopher recognises as the object of faith the divine reality , still this reality is not to be found but in the heart of the Believer, as being an object of sentiment and affirmation; and therefore confined within the sphere of phenomena; but as to whether it exists outside that sentiment and affirmation is a matter which in no way concerns this Philosopher. For the Modernist .Believer, on the contrary, it is an established and certain fact that the divine reality does really exist in itself and quite independently of the person who believes in it. If you ask on what foundation this assertion of the Believer rests, they answer: In the experience of the individual . On this head the Modernists differ from the Rationalists only to fall into the opinion of the Protestants and pseudo-mystics. This is their manner of putting the question: In the religious sentiment one must recognise a kind of intuition of the heart which puts man in immediate contact with the very reality of God, and infuses such a persuasion of God's existence and His action both within and without man as to excel greatly any scientific conviction. They assert, therefore, the existence of a real experience, and one of a kind that surpasses all rational experience. If this experience is denied by some, like the rationalists, it arises from the fact that such persons are unwilling to put themselves in the moral state which is necessary to produce it. It is this experience which, when a person acquires it, makes him properly and truly a believer. How far off we are here from Catholic teaching we have already seen in the decree of the Vatican Council. We shall see later how, with such theories, added to the other errors already mentioned, the way is opened wide for atheism. Here it is well to note at once that, given this doctrine of experience united with the other doctrine of symbolism , every religion, even that of paganism, must be held to be true. What is to prevent such experiences from being met within every religion? In fact that they are to be found is asserted by not a few. And with what right will Modernists deny the truth of an experience affirmed by a follower of Islam? With what right can they claim true experiences for Catholics alone? Indeed Modernists do not deny but actually admit, some confusedly, others in the most open manner, that all religions are true. That they cannot feel otherwise is clear. For on what ground, according to their theories, could falsity be predicated of any religion whatsoever? It must be certainly on one of these two: either on account of the falsity of the religious sentiment or on account of the falsity of the formula pronounced by the mind. Now the religious sentiment, although it may be more perfect or less perfect, is always one and the same; and the intellectual formula, in order to be true, has but to respond to the religious sentiment and to the Believer, whatever be the intellectual capacity of the latter. In the conflict between different religions, the most that Modernists can maintain is that the Catholic has more truth because it is more living and that it deserves with more reason the name of Christian because it corresponds more fully with the origins of Christianity. That these consequences flow from the premises will not seem unnatural to anybody. But what is amazing is that there are Catholics and priests who, We would fain believe, abhor such enormities yet act as if they fully approved of them. For they heap such praise and bestow such public honour on the teachers of these errors as to give rise to the belief that their admiration is not meant merely for the persons, who are perhaps not devoid of a certain merit, but rather for the errors which these persons openly profess and which they do all in their power to propagate.
Source: Pascendi Dominici Gregis (Vatican.va)