Libertas §36

³⁶ And now to reduce for clearness' sake to its principal heads all that has been set forth with its immediate conclusions, the summing up in this briefly: that man, by a necessity of his nature, is wholly subject to the most faithful and ever-enduring power of God; and that, as a consequence, any liberty, except that which consists in submission to God and in subjection to His will, is unintelligible. To deny the existence of this authority in God, or to refuse to submit to it, means to act, not as a free man, but as one who treasonably abuses his liberty; and in such a disposition of mind the chief and deadly vice of liberalism essentially consists. The form, however, of the sin is manifold; for in more ways and degrees than one can the will depart from the obedience which is due to God or to those who share the divine power.