Marital faithfulness involves more than just sexual fidelity. Being faithful to your wife also means defending her and affirming her beauty, intelligence, and integrity at all times, particularly before other people. Faithfulness to your husband means sticking up for him, always building him up and never tearing him down. Marital fidelity means that your spouse’s health, happiness, security, and welfare take a higher place in your life than anything else except your own relationship with the Lord.

it's hard to be a faithful wife, in short,
To certain husbands of a certain sort

A faithful woman looks to the spring, a good book, perfume, earthquakes, and divine revelation for the experience others find in a lover. They deceive their husbands, so to speak, with the entire world, men excepted.

Daughter! Get you an honest Man for a Husband, and keep him honest. No matter whether he is rich, provided he be independent. Regard the Honour and moral Character of the Man more than all other Circumstances. Think of no other Greatness but that of the soul, no other Riches but those of the Heart. An honest, Sensible humane Man, above all the Littlenesses of Vanity, and Extravagances of Imagination, labouring to do good rather than be rich, to be usefull rather than make a show, living in a modest Simplicity clearly within his Means and free from Debts or Obligations, is really the most respectable Man in Society, makes himself and all about him the most happy.

Can any position be more wretched than that of the unhappy father who, when he clasps his child to his breast, is haunted by the suspicion that this is the child of another, the badge of his own dishonor, a thief who is robbing his own children of their inheritance. Under such circumstances the family is little more than a group of secret enemies, armed against each other by a guilty woman, who compels them to pretend to love one another.

Thus it is not enough that a wife should be faithful; her husband, along with his friends and neighbors, must believe in her fidelity; she must be modest, devoted, retiring; she should have the witness not only of a good conscience, but of a good reputation. In a word, if a father must love his children, he must be able to respect their mother. For these reasons it is not enough that the woman should be chaste, she must preserve her reputation and her good name. From these principles there arises not only a moral difference between the sexes, but also a fresh motive for duty and propriety, which prescribes to women in particular the most scrupulous attention to their conduct, their manners, their behavior.

For it is possible for a man to be faithful and lazy at the same time.

A faithful servant is more diligent in keeping your goods safe than is your own wife, because she will claim a half part of your worth all her life.

[W]omen are born with the obligation to obey their husbands even if they're fools.

Is there another city in the world where husbands are so patient as here? Do we not meet with them in every variety, and well provided with everything? One heaps up wealth, which his wife shares with those who are eager to make him a dupe; another, slightly more fortunate, but not less infamous, sees his wife receive presents day after day, and is not troubled in mind by any jealous twinge when she tells him that they are the rewards of virtue. One makes a great noise, which does him not the slightest good; another lets matters take their course in all meekness, and, seeing the gallant arrive at his house, very politely takes up his gloves and his cloak. One married woman cunningly pretends to make a confident of her confiding husband, who slumbers securely under such a delusion, and pities the gallant for his pains, which, however, the latter does not throw away. Another married woman, to account for her extravagance, says that the money she spends has been won at play; and the silly husband, without considering at what play, thanks Heaven for her winnings.

If I had a husband I should want a good one, a man with a head on his shoulders, and a heart. Even if I were young and good-looking, I doubt whether I could please myself. As it is I am likely to be taken bodily to heaven, as to become any man's wife.

I really believe that if I were not a writer, not a creator, not an experimenter, I might have been a very faithful wife. I think highly of faithfulness. But my temperament belongs to the writer, not to the woman

Some women have the best husbands. Others make the best of the husbands they have.

Husbands are chiefly good as lovers when they are betraying their wives.

...but once more I say do as you please, for we women are born to this burden of being obedient to our husbands, though they be blockheads