PIUS IX 1846-1878

“Syllabus,” or Collection of Modern Errors *

[Excerpted from various Allocutions, Encyclicals, Epistles of PIUS IX, together with (the above quoted) Bull, “Quanta cure,” edited Dec. 8, 1864]


Comprising the particular errors of our age, which are noted in consistorial Allocutions, in Encyclical and other Apostolic Letters of His Holiness, our Lord Pope Pius IX *

Sec. II. Modified Rationalism


1708 8. Since human reason is equal to religion itself, therefore, theological studies must be conducted just as the philosophical 13. [see n. 1642]).


1709 9. All the dogmas of the Christian religion without distinction are the object of natural science or philosophy; and human reason, cultivated so much throughout history, can by its natural powers and principles arrive at the true knowledge of all, even the more hidden dogmas, provided these dogmas have been proposed to reason itself as its object (27, 30 [see n. 1682]).


1710 10. Since a philosopher is one thing and philosophy another, the former has the right and the duty to submit himself to the authority which he himself has proved to be true; but philosophy cannot and should not submit itself to any authority (27 [see n. 1673] 30 [see n. 1674])


1711 11. The Church should not only never pay attention to philosophy, but should also tolerate the errors of philosophy, and leave it to correct itself (27 [see n. 1675]).


1712 12. The decrees of the Apostolic See and of the Roman Congregations hinder the free progress of science (30 [see n. 1679]).


1713 13. The method and principles according to which the ancient scholastic doctors treated theology are by no means suited to the necessities of our times and to the progress of the sciences (30 [see n. 1680]).


1714 14. Philosophy is to be treated without any regard to supernatural revelation (30).


N.B. To the system of rationalism are closely connected in great part the errors of Anthony Guenther which are condemned in the Epistle to the Card. Archbishop of Cologne, “Eximiam tuam,” Jun. 15, 1857 (19) [see n. 1655], and in the Epistle to the Bishop of Breslau, “Dolore haud mediocri,” Apr. 30,

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