Are the spirits different really? Or is it just the culture, genetics, and hormones? I know that science has never truely been able to quantify the reasons for all the differences, but look at it like this. Each gender is half of a whole. Your wife is the opposite to your half. Each woman out there is the half to someone else, as each man is a half to some woman. One of my favorite sayings: "We are each of us, angels with just one wing. Only by holding onto each other can we fly." It's a pretty fitting phrase that describes the differences of men and women. Nobody wants two left wings, any more than having two left hands would be useful.