§ 160
The anesthesia of the husband and the failure to come up to the constant test are both increased by man’s ignorance of the fundamental biological nature of the woman.
The only remedy for it, which will improve the conditions of marriage and reduce to the minimum infidelity of wives and of husbands as well, is the husband’s deeper knowledge of the feminine element. This knowledge, which should be an essential part of a man’s education, cannot be entirely given him by another, but must be the result of his own observation.
It is obvious that the intimate adaptations required of each marriage are absolutely individual. While all women and all men are actuated by similar unconscious motives, the specific working out of these motives results in an interplay of forces which is different in each individual marriage. There are over a thousand types of this intimate interplay of personalities within the marital state; also the types change in special cases from time to time. It is easy to see, therefore, that the minutiæ or marital living have endless combinations of possibilities, concerning which the husband would do well to become as well informed as possible.