While free love seems to me a heresy, divorce does really seem to me a superstition. It is not only more of a superstition than free love, but much more of a superstition than strict sacramental marriage; and this point can hardly be made too plain. It is the partisans of divorce, not the defenders of marriage, who attach a stiff and senseless sanctity to a mere ceremony, apart from the meaning of the ceremony. It is our opponents, and not we, who hope to be saved by the letter of ritual, instead of the spirit of reality. It is they who hold that vow or violation, loyalty or disloyalty, can all be disposed of by a mysterious and magic rite, performed first in a law-court and then in a church or a registry office. There is little difference between the two parts of the ritual; except that the law court is much more ritualistic. But the plainest parallels will show anybody that all this is sheer barbarous credulity. It may or may not be superstition for a man to believe he must kiss the Bible to show he is telling the truth. It is certainly the most grovelling superstition for him to believe that, if he kisses the Bible, anything he says will come true. It would surely be the blackest and most benighted Bible-worship to suggest that the mere kiss on the mere book alters the moral quality of perjury. Yet this is precisely what is implied in saying that formal re-marriage alters the moral quality of conjugal infidelity.
— The Superstition of Divorce (1920).