In the early days of my career, I was an avid student of anthropology. One of the conclusive findings of that study is that marriage between a man and a woman is the central, social building block in every human society. It is also true that monogamous, lifelong marriage is the universal cultural norm. Of course, some people will deviate from this practice, as in polygamy (which is found in a few non-literate cultures) and serial monogamy (which has become common in Western culture), but these exceptions do not erase the desire for a lifelong marriage from the human psyche. We cannot improve on God’s plan of one man and one woman married for a lifetime. Give yourself to enriching your marriage and you are co-operating with God.