The Chief Key to the Relationship between Love and Pain to be Found in
Animal Courtship--Courtship a Source of Combativity and of Cruelty--Human
Play in the Light of Animal Courtship--The Frequency of Crimes Against the
Person in Adolescence--Marriage by Capture and its Psychological
Basis--Man's Pleasure in Exerting Force and Woman's Pleasure in
Experiencing it--Resemblance of Love to Pain even in Outward
Expression--The Love-bite--In What Sense Pain May be Pleasurable--The
Natural Contradiction in the Emotional Attitude of Women Toward
Men--Relative Insensibility to Pain of the Organic Sexual Sphere in
Women--The Significance of the Use of the Ampallang and Similar Appliances
in Coitus--The Sexual Subjection of Women to Men in Part Explainable as
the Necessary Condition for Sexual Pleasure.