Parents keep their children with greater diligence and care than rulers and governors keep their subjects. Fathers and mothers are masters naturally and willingly; it is a self-grown dominion; but rulers and magistrates have a compulsory mastery; they act by force, with a prepared dominion; when father and mother can rule no more, the public police must take the matter in hand. Rulers and magistrates must watch over the sixth commandment.
–Luther’s Table Talk
