31 By the patrons of liberalism, however, who make the State absolute and omnipotent, and proclaim that man should live altogether independently of God, the liberty of which We speak, which goes hand in hand with virtue and religion, is not admitted; and whatever is done for its preservation is accounted an injury and an offense against the State. Indeed, if what they say were really true, there would be no tyranny, no matter how monstrous, which we should not be bound to endure and submit to.
Source: Libertas (Vatican.va)