mother-in-law and son-in-law which furthers hostilities between them and renders living together difficult. The fact that the witticisms of civilized races show such a preference for this very mother-in-law theme seems to me to point to the fact that the emotional relations between mother-in-law and son-in-law are controlled by components which stand in sharp contrast to each other. I mean that the relation is really “ambivalent,” that is, it is composed of conflicting feelings of tenderness and hostility.
A certain part of these feelings is evident. The mother-in-law is unwilling to give up the possession of her daughter; she distrusts the stranger to whom her daughter has been delivered, and shows a tendency to maintain the dominating position, to which she became accustomed at home. On the part of the man, there is the determination not to subject himself any longer to any foreign will, his jealousy of all persons who preceded him in the possession of his wife’s tenderness, and, last but not least, his aversion to being disturbed in his illusion of sexual overvaluation. As a rule such a disturbance emanates for the most part from his mother-in-law who reminds him of her daughter through so many common traits but who lacks all the charm of youth, such as beauty and that psychic spontaneity which makes his wife precious to him.