And they rashly assert that human reason, without any reference to God, is the only judge of truth and falsehood, good and evil, and that human reason is a law unto itself, and suffices by its own natural power for the care of the good of persons and peoples. But since they perversely dare to derive all truths of religion from the inborn force of human reason, they assign to man a certain basic right, from which he can think and speak about religion as he likes, and give such honor and worship to God as he finds more agreeable to himself.
Read the rest on The Josias, whose translation project we wish many blessings, since far too few papal documents from before the reign of Pope Leo XIII have been translated into English.