On Faith, Canon 1
III.
On Faith.
1. If any one shall say that human reason is so independent that faith can not be enjoined upon it by God: let him be anathema.
Translation: Henry Edward Manning, Petri Privilegium (1871), reproduced in Philip Schaff, Creeds of Christendom II, via CCEL.
Source: Dei Filius (CCEL)