Ad Petri Cathedram §130

¹³⁰ There is never any need, therefore, to turn to proponents of doctrines condemned by the Church; for they only draw men on with false promises and when they obtain control of the state, try boldly and unscrupulously to deprive men of their supreme spiritual goods—the Christian commandments, Christian hope, and Christian faith. Those who adhere to the doctrines these men propose, minimize or eliminate all that our present age and our modern civilization hold dearest: true liberty and the authentic dignity of the human person. Thus they attempt to destroy the bases of Christianity and civilization.