This is a new summary to amplify the value of ‘MAKE MARRIAGE WORK’.
Quite contrary to modern thought, natural sex differences make men and women compatible enough that they can stretch a relationship for life. Unfortunately, modern thought has long forgotten this ingredient of compatibility: Success depends upon women (aka the relationship experts). You ask, why not men? They don’t need a woman as much as women want a man, they want freedom to play and lay around, and they have little or no talent and lack the sensitivity for fostering and maintaining relationships, whereas women are naturally prepared for it.
The secret to marital compatibility lies with women learning to merge and integrate natural differences. It forms and flows out of the integration and balance of the following when done to the satisfaction of both mates. Details are at the blog posts shown in brackets. She merges and integrates:
- Her need for a brighter future with his drive to compete. [#1747]
- Her drive to nest, nurture, and nestle with loved ones with his need of a place to flop, eat, recover, and prepare for tomorrow’s battles. [#1747]
- Her want of a helpful mate with his want of freedom. 
- Her focus on the future with his focus on the present. 
- Her motivation to earn self-importance by making herself important to others with his motivation to earn self-admiration through accomplishments. [1750 and 1751]
- Her fear of abandonment by her man with his fear of insignificance especially in the eyes of his mate. 
- Her primal certainty that she’s pretty with his ability to ignore or overcome his physical shortcomings. 
- Her modesty with his lack of it. 
- Her being less handy with his being naturally handier. 
- Her A.D.D. (affection deficit disorder) with his A.D.D. (affection delivery disorder). 
- Her bonding during sexual relations with his lack of bonding. 
- Her thriving on guilt (because she learns to be successful carrying lots of it) with his inability to carry or live with even that which he inflicts upon himself (and also holds it against anyone who tries to inflict him with it). 
- Her changes for a better relationship after their first sex together with his changes for the worse regarding their post-conquest relationship.
- Her inability to find love at first sight with his ability to find it. 
- Her mistaken conviction that the pristineness of virginity should be what makes men seek it out with his ambition to beat out his competitors for something unique.
These sex differences play major roles in the process to build compatibility.
A. Before they marry, he’s complex—hard to figure and hard to catch—and she’s simple and easy to stay on track to fulfill her ambition. After marriage, he’s simple and easy to please and she’s complex—hard to figure out and hard to accept her ups and downs. 
B. She seeks emotional fulfillment with a man and goes after it. He seeks sexual fulfillment with a woman but she has to deliver it to him. 
C. Virtual virginity is potentially more influential with a man than actual virginity. 
D. Four natural urges bring sex into play in the woman’s world. They motivate women to take advantage of the male sex drive, so they can bond, generate compatibility, and compete with other women. 
- Her physiological urge to nurture triggers the urge to procreate.
- Her psychological need to assuage the needs of others stimulates her to have sex.
- Her motivational need of self-importance ignites ambitions to outdo and outshine other women as a candidate for mating with a particular man with her understanding that it will be at her discretion to have sex together.
- Her nature craves intimacy, especially when her spirits are down. The promise of post-coital touching and body closeness fuels her desire for sex.
E. Three natural urges bring sex into play in the man’s world. They combine to make males compete with males for females and compete with females for conquest but for little else afterward. 
- His physiological urge to copulate.
- His drive to compete brings females onto the playing field.
- His intrinsic motivation to outdo and outshine other men.
So, that’s the layer of rocks—some slicker and some harder than others—upon which marital compatibility can be found, negotiated, and pledged according to the points in MAKE MARRIAGE WORK.