The sexual question

In Short

This sweeping treatise examines human sexuality through the combined lenses of evolutionary biology, psychiatry, and social reform. Beginning with the cellular mechanisms of inheritance, embryonic development, and animal instincts, the text systematically moves from organic biology to human psychology and broad societal structures. It dissects the mechanics of physical attraction, courtship behaviors, and psychological disorders, while launching a vigorous critique of contemporary social evils, including forced marriages, state-regulated prostitution, and punitive legal codes. By contrasting animal ancestral traits with human artificial conventions, the work advocates for rational sexual education, gender equality, and eugenic responsibility to improve future generations. The treatise endures because it boldly bridges the gap between natural science and moral philosophy, arguing that genuine human happiness requires freeing sexual ethics from outdated dogmas and aligning them with biological truths and social justice.

The Story

The treatise begins in the microscopic world of biological inheritance, establishing that every living cell bears ancestral energy derived from a long evolutionary lineage. From the division of sea urchin eggs and embryonic whale teeth to the persistent instincts of parasitic ants and the human coccyx, living organisms retain the physical and psychological vestiges of their forebears. Human sexual traits are similarly rooted in this phylogenetic history. The male and female sexes are specialized bearers of germinal cells that start as undifferentiated, hermaphroditic structures before maturing into distinct roles.

Transitioning from cellular biology to human physiology, the argument traces how physical maturation gives rise to the sexual appetite and its expressions. The bodily realities of reproduction are laid bare, detailing the nervous disruptions of early pregnancy, the strenuous muscular labor of childbirth, and the emotional compensations of motherhood. In daily human interaction, sexual desire manifests through physiognomic changes in the face, hands, and stance. The text explores how courtship oscillates between healthy engagement and manipulative games, analyzing the silent language of flirtation, male sexual braggardism modeled on animal display, and female coquetry shaped by social expectations.

Expanding into comparative ethnology, the analysis surveys diverse marital institutions across human societies. It details variations from primitive betrothals and marriage by purchase or elopement to complex matriarchal structures, such as those of the Goajires Indians in South America, where wives own land and maintain independent domestic domains. While monogamy thrives best alongside mutual respect and altruism, modern civilization frequently degrades union through marriages of convenience, branded here as a form of fashionable prostitution.

From cultural customs, the argument advances into clinical psychiatry and sexual pathology. It examines how mental representations directly affect physical reflexes, producing conditions like psychic impotence through negative autosuggestion. It categorizes perversions, such as masochism and foot fetichism, alongside the distinct manifestations of eroticism observed in psychiatric wards, noting that mental alienation releases violent sexual passions in women more readily than in men due to differences in cerebral localization. Through hypnotic suggestion and an understanding of subconscious mental activity, clinicians can untangle these psychological disturbances.

The narrative of ideas then tackles major sociological evils, focusing heavily on prostitution, pimping, and state regulation. The text roundly condemns state-sanctioned brothels as hypocritical compromises that punish vulnerable women while absolving male clients and commercial exploiters. Modern lifestyle factors, including alcohol consumption, sedentary habits, and artificial erotic stimulation, are shown to further corrupt natural appetites. The argument insists that sexual relations must be liberated from rigid religious dogmas and re-anchored in natural ethics centered on human welfare and devotion to future generations.

This critique culminates in a sharp attack on traditional legal systems, particularly penal law built on the flawed premise of absolute free-will and archaic impulses toward vengeance. The tragic court case of Frieda Keller—a desperate young mother driven to kill her illegitimate child to escape social ruin, only to be sentenced to life imprisonment while the father remains unpunished—serves as a damning illustration of barbaric judicial hypocrisy.

Finally, the treatise concludes with a constructive vision for human progress centered on hygiene, education, and rational selection. It demands an end to the enforced ignorance of young women, calling for candid sexual education to protect them from exploitation. It cautions against the subtle corruption of commercialized pornography and artistic charlatanism while defending natural beauty. True social elevation, the argument concludes, requires reforming educational standards: instead of crowning passive memory and examination nonentities, society must actively encourage the reproduction and advancement of individuals who possess genuine will-power, creative imagination, and practical utility for the human collective.

How It Unfolds

• The cellular foundation Life begins at the microscopic level, where every germinal cell carries the accumulated physical and psychological energy of an ancestral lineage. Organisms retain structural vestiges, from useless embryonic whale teeth to human emotional reactions, proving that sexual development is governed by deeply rooted evolutionary laws.
• Physiology and pregnancy Physical maturity releases mechanical and sensory excitations that drive the human sexual appetite across body and mind. Pregnancy and childbirth bring profound nervous and physical transformations, where severe physical pain and anatomical strain are ultimately compensated by the instinctive maternal desire to rear a child.
• The dance of courtship Human attraction manifests through expressive physical movements, non-verbal gestures, and the subtle communications of quiet flirtation. Male sexual conquest often mimics animal display through bold self-exaltation, whereas female coquetry adapts to social pressures through artful dissimulation and careful reservation.
• Customs of marriage Comparative studies of human societies reveal that marital structures range from primitive betrothals and bride-purchase to matriarchal polygamy among the Goajires, where wives independently manage separate domains. Monogamy fosters the highest degree of altruism, provided it is founded on mutual love rather than financial calculation.
• Pathology of the mind Conscious mental representations can directly paralyze physical reflexes, causing psychic impotence through negative autosuggestion or giving rise to perversions like masochism. Observations in psychiatric wards highlight how brain disturbances unleash distinct sexual symptoms in men and women, requiring psychological therapies such as hypnosis.
• The blight of prostitution Commercialized sex and state-regulated brothels represent a corrupt social hypocrisy that penalizes marginalized women while entirely absolving male clients and profit-driven pimps. External factors like alcohol, sedentary living, and artificial eroticism continuously distort healthy human desires, feeding an unhealthy atmosphere.
• Religion and moral ethics Religious fervor frequently channels suppressed eroticism into rigid dogmatic tyranny rather than practical human empathy. Social progress requires liberating sexual relations from mystical doctrines and establishing a human-centered morality dedicated to the tangible welfare of descendants.
• Failure of penal justice Current criminal legal codes rely on the false illusion of free-will and primitive instincts for retribution rather than scientific understanding. The harsh sentencing of desperate, unwed mothers like Frieda Keller exposes a barbaric legal system that brutalizes victims while leaving the original cause unaddressed.
• Education and sexual hygiene Deliberately withholding functional knowledge from young women leaves them exceptionally vulnerable to cruel disillusionment, seduction, and white slavery. Honest, scientific instruction must replace artificial taboos so that youth can make informed decisions regarding marriage and family life.
• Rational selection for the future Modern society must reject rigid examination systems that merely reward passive memory and mental receptivity, focusing instead on cultivating creative imagination, strong will, and practical utility. By avoiding blastophthoric damage from alcohol or disease, humanity can ensure the healthy physical and mental development of future generations.

The People

• The Normal Individual seeks a balanced sexual and family life, yet finds his path constantly blocked by social prejudice, artificial excitations, and the enslaving power of routine. Possessing average mental plasticity, this representative of mediocrity easily succumbs to prevailing fashions, alcohol, and conventional dogmas unless elevated by independent judgment and moral education, ultimately risking a life of unreflecting conformity.
• The Young Woman desires genuine love, maternity, and personal respect, but is severely hindered by an enforced, artificial ignorance imposed by parents and society. Deprived of scientific knowledge regarding her natural biological functions, she enters marital contracts blinded by unrealistic illusions, leaving her dangerously vulnerable to cruel disillusionment, seduction, and the predatory traps of white slavery.
• Frieda Keller represents the ultimate tragedy of the unwed mother who desires simple survival and dignity for her child, but is completely overwhelmed by economic necessity and the crushing social stigma of illegitimate birth. Driven by sheer despair to strangle her infant in the woods, she encounters a ruthless judicial system that condemns her to penal servitude for life while the father escapes all legal responsibility.
• The Prostitute seeks basic livelihood within an unequal economic system, but becomes hopelessly trapped by commercial pimping, financial venality, and discriminatory state regulation. Branded and registered as an outcast while her male clients remain completely free from public accountability, she is reduced to a mere commodity within a hypocritical social order that treats human bodies as merchandise.
• The Don Juan seeks egoistic sexual conquest, driven by an atavistic male self-exaltation that caricatures animal courtship displays. Blocked only by women of exceptional judgment, he relies on theatrical posture, uniforms, and sheer audacity to hypnotize female reason, leaving moral ruin in his wake while operating with total impunity under contemporary social conventions.
• The Social Reformer seeks to establish a rational human ethics founded on natural science, aiming to replace religious dogmas with an ardent devotion to the welfare of descendants. Hindered by entrenched traditional routine, economic inequality, and flawed penal codes based on retribution, this figure strives to overhaul education and law so that creative imagination and genuine will-power can guide humanity toward progress.

In Its Own Voice

To demonstrate that evolutionary inheritance operates through every aspect of an organism, the treatise explains how fundamental species traits remain embedded across the entire cellular makeup rather than existing solely within specialized reproductive units.

On the contrary it becomes more and more certain, from further investigation, that each cell of the body bears in itself, so to speak, all the energies of the species, as is distinctly seen in plants.

Addressing the severe social harm caused by keeping young women in complete ignorance of their own physiology, the text forcefully interrogates the cultural origins of withholding basic biological instruction from daughters.

Whoever invented this absurd and mischievous idea that a young girl should remain ignorant of her natural functions till the moment when she has bound herself for life to fulfill them?

In a scathing indictment of judicial double standards following the trial of a desperate unwed mother, the text denounces a legal system that inflicts ultimate punishment on the victim while absolving the responsible party.

We are compelled to exclaim with M. de Morsier that a legislation which, in such a case, condemns to death one who can justly be called a victim, while leaving unpunished the real culprit, is calculated to destroy all belief in justice in a democracy which calls itself Christian.

What It's Really About

Beneath its exhaustive scientific classifications and psychiatric clinical cases, the work is fundamentally an argument for aligning human social institutions with natural biological truth and compassionate ethics. It posits that human sexual suffering, moral corruption, and societal hypocrisy stem not from innate depravity, but from a profound mismatch between artificial cultural conventions and natural evolution. By clinging to archaic religious dogmas, legal doctrines based on primitive vengeance, and economic arrangements that commodify marriage and love, society repeatedly brutalizes individuals—particularly women and the vulnerable.

The text continuously questions how humanity can transcend its animal heritage without falling into oppressive hypocrisy. It argues that true moral progress requires replacing mystical superstitions and double standards with rational education, gender equality, and a collective commitment to eugenic responsibility. Ultimately, the work asserts that sexual health and social justice are inseparable: society cannot achieve genuine harmony until it frees human relationships from financial corruption, protects offspring through conscious procreation, and replaces state coercion with a human-centered religion of empathy and devotion to future generations.

Why Read It Today

Historians of medicine, sociologists, and readers fascinated by the intellectual landscape of the early twentieth century will find this work an absorbing, unfiltered window into the origins of modern sexology. Reading it feels like sitting in the lecture hall of a deeply earnest, highly opinionated physician-philosopher who moves effortlessly from cellular biology and comparative ethnology to courtroom drama and clinical psychiatry. What stays with the reader is the author's passionate, uncompromising defense of human dignity, his early advocacy for women's educational rights, and his fiery denunciation of legal and social double standards.

However, modern readers must navigate significant period difficulties and archaic concepts present in the text. The work is dense and encyclopedic in scope, requiring patience as it moves through intricate biological details, such as cellular division in sea urchins, alongside broad sociological taxonomies. Furthermore, the text is undeniably bound to its era's intellectual biases: it relies on early eugenic concepts like "blastophthoria" and racial classifications, while advancing generalizations about gender psychology, animal instincts, and social utility that reflect early twentieth-century scientific assumptions. It also presents paternalistic views on mental alienation and physical constitution that feel distinctly dated today.

Despite these period limitations, the text remains surprisingly forward-thinking in its critique of state-regulated prostitution, its call for honest sexual education, and its rejection of penal systems founded on mere retribution. It offers a rare, complete snapshot of a major historic attempt to synthesize natural science and moral reform, making it a compelling read for anyone seeking to understand how modern attitudes toward sex, law, and human rights were debated at the dawn of the twentieth century.