Pope Pius X
Pascendi Dominici Gregis §10
Pascendi Dominici Gregis: On the Doctrines of the Modernists
10 Therefore the religious sentiment , which through the agency of vital immanence emerges from the lurking places of the subconsciousness, is the germ of all religion, and the explanation of everything that has been or ever will be in any religion. The sentiment , which was at first only rudimentary and almost formless, gradually matured, under the influence of that mysterious principle from which it originated, with the progress of human life, of which, as has been said, it is a form. This, then, is the origin of all religion, even supernatural religion; it is only a development of this religious sentiment . Nor is the Catholic religion an exception; it is quite on a level with the rest; for it was engendered, by the process of vital immanence , in the consciousness of Christ, who was a man of the choicest nature, whose like has never been, nor will be. - Those who hear these audacious, these sacrilegious assertions, are simply shocked! And yet, Venerable Brethren, these are not merely the foolish babblings of infidels. There are many Catholics, yea, and priests too, who say these things openly; and they boast that they are going to reform the Church by these ravings! There is no question now of the old error, by which a sort of right to the supernatural order was claimed for the human nature. We have gone far beyond that: we have reached the point when it is affirmed that our most holy religion, in the man Christ as in us, emanated from nature spontaneously and entirely. Than this there is surely nothing more destructive of the whole supernatural order. Wherefore the Vatican Council most justly decreed: "If anyone says that man cannot be raised by God to a knowledge and perfection which surpasses nature, but that he can and should, by his own efforts and by a constant development, attain finally to the possession of all truth and good, let him be anathema" ( De Revel. , can. 3).
Source: Pascendi Dominici Gregis (Vatican.va)