For Better or Worse by George Bernard Shaw

Jesus, however, did not express a complicated view of marriage. His objection to it was quite simple, as we have seen. He perceived that nobody could live the higher life unless money and sexual love were obtainable without sacrificing it; and he saw that the effect of marriage as it existed among the Jews (and as it still exists among ourselves) was to make the couples sacrifice every higher consideration until they had fed and pleased one another. The worst of it is that this dangerous preposterousness in marriage, instead of improving as the general conduct of married couples improves, becomes much worse. The selfish man to whom his wife is nothing but a slave, the selfish woman to whom her husband is nothing but a scapegoat and a breadwinner, are not held back from spiritual or any other adventures by fear of their effect on the welfare of their mates.

Their wives do not make recreants and cowards of them: their husbands do not chain them to the cradle and the cooking range when their feet should be beautiful on the mountains. It is precisely as people become more kindly, more conscientious, more ready to shoulder the heavier part of the burden (which means that the strong shall give way to the weak and the slow hold back the swift), that marriage becomes an intolerable obstacle to individual evolution.