The Child's Right to Choose Its Ancestry—How This is Effected—The Mother the Child's Supreme Parent—Motherhood and the Woman Movement—The Immense Importance of Motherhood—Infant Mortality and Its Causes—The Chief Cause in the Mother—The Need of Rest During Pregnancy—Frequency of Premature Birth—The Function of the State—Recent Advance in Puericulture—The Question of Coitus During Pregnancy—The Need of Rest During Lactation—The Mother's Duty to Suckle Her Child—The Economic Question—The Duty of the State—Recent Progress in the Protection of the Mother—The Fallacy of State Nurseries.

Nurture Necessary as Well as Breed—Precocious Manifestations of the Sexual Impulse—Are they to be Regarded as Normal?—The Sexual Play of Children—The Emotion of Love in Childhood—Are Town Children More Precocious Sexually Than Country Children?—Children's Ideas Concerning the Origin of Babies—Need for Beginning the Sexual Education of Children in Early Years—The Importance of Early Training in Responsibility—Evil of the Old Doctrine of Silence in Matters of Sex—The Evil Magnified When Applied to Girls—The Mother the Natural and Best Teacher—The Morbid Influence of Artificial Mystery in Sex Matters—Books on Sexual Enlightenment of the Young—Nature of the Mother's Task—Sexual Education in the School—The Value of Botany—Zoölogy—Sexual Education After Puberty—The Necessity of Counteracting Quack Literature—Danger of Neglecting to Prepare for the First Onset of Menstruation—The Right Attitude Towards Woman's Sexual Life—The Vital Necessity of the Hygiene of Menstruation During Adolescence—Such Hygiene Compatible with the Educational and Social Equality of the Sexes—The Invalidism of Women Mainly Due to Hygienic Neglect—Good Influence of Physical Training on Women and Bad Influence of Athletics—The Evils of Emotional Suppression—Need of Teaching the Dignity of Sex—Influence of These Factors on a Woman's Fate in Marriage—Lectures and Addresses on Sexual Hygiene—The Doctor's Part in Sexual Education—Pubertal Initiation Into the Ideal World—The Place of the Religious and Ethical Teacher—The Initiation Rites of Savages Into Manhood and Womanhood—The Sexual Influence of Literature—The Sexual Influence of Art.

The Greek Attitude Towards Nakedness—How the Romans Modified That Attitude—The Influence of Christianity—Nakedness in Mediæval Times—Evolution of the Horror of Nakedness—Concomitant Change in the Conception of Nakedness—Prudery—The Romantic Movement—Rise of a New Feeling in Regard to Nakedness—The Hygienic Aspect of Nakedness—How Children May Be Accustomed to Nakedness—Nakedness Not Inimical to Modesty—The Instinct of Physical Pride—The Value of Nakedness in Education—The Æsthetic Value of Nakedness—The Human Body as One of the Prime Tonics of Life—How Nakedness May Be Cultivated—The Moral Value of Nakedness.

The Conception of Sexual Love—The Attitude of Mediæval Asceticism—St. Bernard and St. Odo of Cluny—The Ascetic Insistence on the Proximity of the Sexual and Excretory Centres—Love as a Sacrament of Nature—The Idea of the Impurity of Sex in Primitive Religions Generally—Theories of the Origin of This Idea—The Anti-Ascetic Element in the Bible and Early Christianity—Clement of Alexandria—St. Augustine's Attitude—The Recognition of the Sacredness of the Body by Tertullian, Rufinus and Athanasius—The Reformation—The Sexual Instinct Regarded as Beastly—The Human Sexual Instinct Not Animal-like—Lust and Love—The Definition of Love—Love and Names for Love Unknown in Some Parts of the World—Romantic Love of Late Development in the White Race—The Mystery of Sexual Desire—Whether Love is a Delusion—The Spiritual as Well as the Physical Structure of the World in Part Built up on Sexual Love The Testimony of Men of Intellect to the Supremacy of Love.

Chastity Essential to the Dignity of Love—The Eighteenth Century Revolt Against the Ideal of Chastity—Unnatural Forms of Chastity—The Psychological Basis of Asceticism—Asceticism and Chastity as Savage Virtues—The Significance of Tahiti—Chastity Among Barbarous Peoples—Chastity Among the Early Christians—Struggles of the Saints with the Flesh—The Romance of Christian Chastity—Its Decay in Mediæval Times—Aucassin et Nicolette and the New Romance of Chaste Love—The Unchastity of the Northern Barbarians—The Penitentials—Influence of the Renaissance and the Reformation—The Revolt Against Virginity as a Virtue—The Modern Conception of Chastity as a Virtue—The Influences That Favor the Virtue of Chastity—Chastity as a Discipline—The Value of Chastity for the Artist—Potency and Impotence in Popular Estimation—The Correct Definitions of Asceticism and Chastity.

The Influence of Tradition—The Theological Conception of Lust—Tendency of These Influences to Degrade Sexual Morality—Their Result in Creating the Problem of Sexual Abstinence—The Protests Against Sexual Abstinence—Sexual Abstinence and Genius—Sexual Abstinence in Women—The Advocates of Sexual Abstinence—Intermediate Attitude—Unsatisfactory Nature of the Whole Discussion—Criticism of the Conception of Sexual Abstinence—Sexual Abstinence as Compared to Abstinence from Food—No Complete Analogy—The Morality of Sexual Abstinence Entirely Negative—Is It the Physician's Duty to Advise Extra-Conjugal Sexual Intercourse?—Opinions of Those Who Affirm or Deny This Duty—The Conclusion Against Such Advice—The Physician Bound by the Social and Moral Ideas of His Age—The Physician as Reformer—Sexual Abstinence and Sexual Hygiene—Alcohol—The Influence of Physical and Mental Exercise—The Inadequacy of Sexual Hygiene in This Field—The Unreal Nature of the Conception of Sexual Abstinence—The Necessity of Replacing It by a More Positive Ideal.

The Orgy:—The Religious Origin of the Orgy—The Feast of Fools—Recognition of the Orgy by the Greeks and Romans—The Orgy Among Savages—The Drama—The Object Subserved by the Orgy.

The Origin and Development of Prostitution:—The Definition of Prostitution—Prostitution Among Savages—The Conditions Under Which Professional Prostitution Arises—Sacred Prostitution—The Rite of Mylitta—The Practice of Prostitution to Obtain a Marriage Portion—The Rise of Secular Prostitution in Greece—Prostitution in the East—India, China, Japan, etc.—Prostitution in Rome—The Influence of Christianity on Prostitution—The Effort to Combat Prostitution—The Mediæval Brothel—The Appearance of the Courtesan—Tullia D'Aragona—Veronica Franco—Ninon de Lenclos—Later Attempts to Eradicate Prostitution—The Regulation of Prostitution—Its Futility Becoming Recognized.

The Causes of Prostitution:—Prostitution as a Part of the Marriage System—The Complex Causation of Prostitution—The Motives Assigned by Prostitutes—(1) Economic Factor of Prostitution—Poverty Seldom the Chief Motive for Prostitution—But Economic Pressure Exerts a Real Influence—The Large Proportion of Prostitutes Recruited from Domestic Service—Significance of This Fact—(2) The Biological Factor of Prostitution—The So-called Born-Prostitute—Alleged Identity with the Born-Criminal—The Sexual Instinct in Prostitutes—The Physical and Psychic Characters of Prostitutes—(3) Moral Necessity as a Factor in the Existence of Prostitution—The Moral Advocates of Prostitution—The Moral Attitude of Christianity Towards Prostitution—The Attitude of Protestantism—Recent Advocates of the Moral Necessity of Prostitution—(4) Civilizational Value as a Factor of Prostitution—The Influence of Urban Life—The Craving for Excitement—Why Servant-girls so Often Turn to Prostitution—The Small Part Played by Seduction—Prostitutes Come Largely from the Country—The Appeal of Civilization Attracts Women to Prostitution—The Corresponding Attraction Felt by Men—The Prostitute as Artist and Leader of Fashion—The Charm of Vulgarity.

The Present Social Attitude Towards Prostitution:—The Decay of the Brothel—The Tendency to the Humanization of Prostitution—The Monetary Aspects of Prostitution—The Geisha—The Hetaira—The Moral Revolt Against Prostitution—Squalid Vice Based on Luxurious Virtue—The Ordinary Attitude Towards Prostitutes—Its Cruelty Absurd—The Need of Reforming Prostitution—The Need of Reforming Marriage—These Two Needs Closely Correlated—The Dynamic Relationships Involved.

Prostitution in Relation to Our Marriage System—Marriage and Morality—The Definition of the Term "Morality"—Theoretical Morality—Its Division Into Traditional Morality and Ideal Morality—Practical Morality—Practical Morality Based on Custom—The Only Subject of Scientific Ethics—The Reaction Between Theoretical and Practical Morality—Sexual Morality in the Past an Application of Economic Morality—The Combined Rigidity and Laxity of This Morality—The Growth of a Specific Sexual Morality and the Evolution of Moral Ideals—Manifestations of Sexual Morality—Disregard of the Forms of Marriage—Trial Marriage—Marriage After Conception of Child—Phenomena in Germany, Anglo-Saxon Countries, Russia, etc.—The Status of Woman—The Historical Tendency Favoring Moral Equality of Women with Men—The Theory of the Matriarchate—Mother-Descent—Women in Babylonia—Egypt—Rome—The Eighteenth and Nineteenth Centuries—The Historical Tendency Favoring Moral Inequality of Woman—The Ambiguous Influence of Christianity—Influence of Teutonic Custom and Feudalism—Chivalry—Woman in England—The Sale of Wives—The Vanishing Subjection of Woman—Inaptitude of the Modern Man to Domineer—The Growth of Moral Responsibility in Women—The Concomitant Development of Economic Independence—The Increase of Women Who Work—Invasion of the Modern Industrial Field by Women—In How Far This Is Socially Justifiable—The Sexual Responsibility of Women and Its Consequences—The Alleged Moral Inferiority of Women—The "Self-Sacrifice" of Women—Society Not Concerned with Sexual Relationships—Procreation the Sole Sexual Concern of the State—The Supreme Importance of Maternity.

The Definition of Marriage—Marriage Among Animals—The Predominance of Monogamy—The Question of Group Marriage—Monogamy a Natural Fact, Not Based on Human Law—The Tendency to Place the Form of Marriage Above the Fact of Marriage—The History of Marriage—Marriage in Ancient Rome—Germanic Influence on Marriage—Bride-Sale—The Ring—The Influence of Christianity on Marriage—The Great Extent of this Influence—The Sacrament of Matrimony—Origin and Growth of the Sacramental Conception—The Church Made Marriage a Public Act—Canon Law—Its Sound Core—Its Development—Its Confusions and Absurdities—Peculiarities of English Marriage Law—Influence of the Reformation on Marriage—The Protestant Conception of Marriage as a Secular Contract—The Puritan Reform of Marriage—Milton as the Pioneer of Marriage Reform—His Views on Divorce—The Backward Position of England in Marriage Reform—Criticism of the English Divorce Law—Traditions of the Canon Law Still Persistent—The Question of Damages for Adultery—Collusion as a Bar to Divorce—Divorce in France, Germany, Austria, Russia, etc.—The United States—Impossibility of Deciding by Statute the Causes for Divorce—Divorce by Mutual Consent—Its Origin and Development—Impeded by the Traditions of Canon Law—Wilhelm von Humboldt—Modern Pioneer Advocates of Divorce by Mutual Consent—The Arguments Against Facility of Divorce—The Interests of the Children—The Protection of Women—The Present Tendency of the Divorce Movement—Marriage Not a Contract—The Proposal of Marriage for a Term of Years—Legal Disabilities and Disadvantages in the Position of the Husband and the Wife—Marriage Not a Contract But a Fact—Only the Non-Essentials of Marriage, Not the Essentials, a Proper Matter for Contract—The Legal Recognition of Marriage as a Fact Without Any Ceremony—Contracts of the Person Opposed to Modern Tendencies—The Factor of Moral Responsibility—Marriage as an Ethical Sacrament—Personal Responsibility Involves Freedom—Freedom the Best Guarantee of Stability—False Ideas of Individualism—Modern Tendency of Marriage—With the Birth of a Child Marriage Ceases to be a Private Concern—Every Child Must Have a Legal Father and Mother—How This Can be Effected—The Firm Basis of Monogamy—The Question of Marriage Variations—Such Variations Not Inimical to Monogamy—The Most Common Variations—The Flexibility of Marriage Holds Variations in Check—Marriage Variations versus Prostitution—Marriage on a Reasonable and Humane Basis—Summary and Conclusion.

Marriage Not Only for Procreation—Theologians on the Sacramentum Solationis—Importance of the Art of Love—The Basis of Stability in Marriage and the Condition for Right Procreation—The Art of Love the Bulwark Against Divorce—The Unity of Love and Marriage a Principle of Modern Morality—Christianity and the Art of Love—Ovid—The Art of Love Among Primitive Peoples—Sexual Initiation in Africa and Elsewhere—The Tendency to Spontaneous Development of the Art of Love in Early Life—Flirtation—Sexual Ignorance in Women—The Husband's Place in Sexual Initiation—Sexual Ignorance in Men—The Husband's Education for Marriage—The Injury Done by the Ignorance of Husbands—The Physical and Mental Results of Unskilful Coitus—Women Understand the Art of Love Better Than Men—Ancient and Modern Opinions Concerning Frequency of Coitus—Variation in Sexual Capacity—The Sexual Appetite—The Art of Love Based on the Biological Facts of Courtship—The Art of Pleasing Women—The Lover Compared to the Musician—The Proposal as a Part of Courtship—Divination in the Art of Love—The Importance of the Preliminaries in Courtship—The Unskilful Husband Frequently the Cause of the Frigid Wife—The Difficulty of Courtship—Simultaneous Orgasm—The Evils of Incomplete Gratification in Women—Coitus Interruptus—Coitus Reservatus—The Human Method of Coitus—Variations in Coitus—Posture in Coitus—The Best Time for Coitus—The Influence of Coitus in Marriage—The Advantages of Absence in Marriage—The Risks of Absence—Jealousy—The Primitive Function of Jealousy—Its Predominance Among Animals, Savages, etc, and in Pathological States—An Anti-Social Emotion—Jealousy Incompatible With the Progress of Civilization—The Possibility of Loving More Than One Person at a Time—Platonic Friendship—The Conditions Which Make It Possible—The Maternal Element in Woman's Love—The Final Development of Conjugal Love—The Problem of Love One of the Greatest Of Social Questions.

The Relationship of the Science of Procreation to the Art of Love—Sexual Desire and Sexual Pleasure as the Conditions of Conception—Reproduction Formerly Left to Caprice and Lust—The Question of Procreation as a Religious Question—The Creed of Eugenics—Ellen Key and Sir Francis Galton—Our Debt to Posterity—The Problem of Replacing Natural Selection—The Origin and Development of Eugenics—The General Acceptance of Eugenical Principles To-day—The Two Channels by Which Eugenical Principles are Becoming Embodied in Practice—The Sense of Sexual Responsibility in Women—The Rejection of Compulsory Motherhood—The Privilege of Voluntary Motherhood—Causes of the Degradation of Motherhood—The Control of Conception—Now Practiced by the Majority of the Population in Civilized Countries—The Fallacy of "Racial Suicide"—Are Large Families a Stigma of Degeneration?—Procreative Control the Outcome of Natural and Civilized Progress—The Growth of Neo-Malthusian Beliefs and Practices—Facultative Sterility as Distinct from Neo-Malthusianism—The Medical and Hygienic Necessity of Control of Conception—Preventive Methods—Abortion—The New Doctrine of the Duty to Practice Abortion—How Far is this Justifiable?—Castration as a Method of Controlling Procreation—Negative Eugenics and Positive Eugenics—The Question of Certificates for Marriage—The Inadequacy of Eugenics by Act of Parliament—The Quickening of the Social Conscience in Regard to Heredity—Limitations to the Endowment of Motherhood—The Conditions Favorable to Procreation—Sterility—The Question of Artificial Fecundation—The Best Age of Procreation—The Question of Early Motherhood—The Best Time for Procreation—The Completion of the Divine Cycle of Life.