157. 1. Each sex has implanted in it from creation a capacity and inclination that gives them the ability and the will to be joined together as though into one. We showed just above from the book of creation that woman was taken out of man. It follows from this that the two sexes have therefore a capacity and inclination to join themselves into one. For whatever is taken from someone carries with it and retains something from his character which forms its character. And because it is of a like character, it yearns for reunion, and when it has been reunited, it exists as though in itself when it exists in the other, and conversely.

It raises no objection to say that each sex has a capacity for conjunction with the other or that they can be united. Nor that they have an inclination to join themselves together. For personal observation and experience attests to both.