The Church Apostrophised as Teacher of All Wisdom. Doctrine of the Catholic Church
62 But why say more on this? For who but sees that men who dare to speak thus against the Christian Scriptures, though they may not be what they are suspected of being, are at least no Christians? For to Christians this rule of life is given, that we should love the Lord Our God with all the heart, with all the soul, and with all the mind, and our neighbor as ourselves; for on these two commandments hang all the law and the prophets. Rightly, then, Catholic Church, most true mother of Christians, do you not only teach that God alone, to find whom is the happiest life, must be worshipped in perfect purity and chastity, bringing in no creature as an object of adoration whom we should be required to serve; and from that incorrupt and inviolable eternity to which alone man should be made subject, in cleaving to which alone the rational soul escapes misery, excluding everything made, everything liable to change, everything under the power of time; without confounding what eternity, and truth, and peace itself keeps separate, or separating what a common majesty unites: but you also contain love and charity to our neighbor in such a way, that for all kinds of diseases with which souls are for their sins afflicted, there is found with you a medicine of prevailing efficacy.
63. Your training and teaching are childlike for children, forcible for youths, peaceful for the aged, taking into account the age of the mind as well as of the body. Thou subjectest women to their husbands in chaste and faithful obedience, not to gratify passion, but for the propagation of offspring, and for domestic society. You give to men authority over their wives, not to mock the weaker sex, but in the laws of unfeigned love. Thou dost subordinate children to their parents in a kind of free bondage, and dost set parents over their children in a godly rule. You bind brothers to brothers in a religious tie stronger and closer than that of blood. Without violation of the connections of nature and of choice, you bring within the bond of mutual love every relationship of kindred, and every alliance of affinity. Thou teachest servants to cleave to their masters from delight in their task rather than from the necessity of their position. You render masters forbearing to their servants, from a regard to God their common Master, and more disposed to advise than to compel. Thou unitest citizen to citizen, nation to nation, yea, man to man, from the recollection of their first parents, not only in society but in fraternity. Thou teachest kings to seek the good of their peoples; you counsel peoples to be subject to their kings. Thou teachest carefully to whom honor is due, to whom regard, to whom reverence, to whom fear, to whom consolation, to whom admonition, to whom encouragement, to whom discipline, to whom rebuke, to whom punishment; showing both how all are not due to all, and how to all love is due, and how injury is due to none.
64. Then, after this human love has nourished and invigorated the mind cleaving to your breast, and fitted it for following God, when the divine majesty has begun to disclose itself as far as suffices for man while a dweller on the earth, such fervent charity is produced, and such a flame of divine love is kindled, that by the burning out of all vices, and by the purification and sanctification of the man, it becomes plain how divine are these words, "I am a consuming fire," and, "I have come to send fire on the earth." These two utterances of one God stamped on both Testaments, exhibit with harmonious testimony, the sanctification of the soul, pointing forward to the accomplishment of that which is also quoted in the New Testament from the Old: "Death is swallowed up in victory. O death, where is your sting? Where, O death, is your contest?" Could these heretics understand this one saying, no longer proud but quite reconciled, they would worship God nowhere but with you and in your bosom. In you, as is fit, divine precepts are kept by widely-scattered multitudes. In you, as is fit, it is well understood how much more heinous sin is when the law is known than when it is unknown. For "the sting of death is sin, and the strength of sin is the law," which adds to the force with which the consciousness of disregard of the precept strikes and slays. In you it is seen, as is fit, how vain is effort under the law, when lust lays waste the mind, and is held in check by fear of punishment, instead of being overborne by the love of virtue. Yours, as is fit, are the many hospitable, the many friendly, the many compassionate, the many learned, the many chaste, the many saints, the many so ardent in their love to God, that in perfect continence and amazing indifference to this world they find happiness even in solitude.
Source: On the Morals of the Catholic Church (New Advent)