Women are therefore designed to wait for a strong commitment prior to getting pregnant. Many men seem to have little or no such programming. This basic anatomical difference, by itself, leads to rather strong differences in priorities between men and women. In addition, men and women clearly have different programming in other parts of their brains. For example, men are much more aggressive, in general, than women, while women tend to be much more nurturing.
Men are more individualistic, while women are more social.
Men tend to rely more on rational thought, while women rely more on feelings. These observations are generalizations, or course, but they are fairly obvious. You can see these tendencies in children at play. Girls play with dolls and work with each other socially, while boys wage mock wars with one another. They are simply different, and they have their own places.