Book summary “What is man?”: summary

Introduction

You often believe that you originate your own thoughts, choose your own paths, and act as an independent moral agent. When you examine your daily decisions, you likely feel that you possess absolute free will and that your character is entirely your own creation.

Mark Twain strips away this comforting illusion in What Is Man? by presenting a radical mechanistic philosophy. You learn that human beings operate entirely as automatic machines driven by heredity, habitat, and association.

The book is structured as a probing dialogue between an old man and a young man, where they dissect human motives, the mechanics of thought, and the relentless drive for self-approval.

• Do you originate any of your own ideas, or are they merely reflections of your training?
• Can you ever perform a truly unselfish act, or does every choice serve your own peace of mind?
• Is free will an illusion bound completely by your inherited temperament?

1. Man as an Impersonal Machine

Human beings originate nothing independently and function entirely as determined machines shaped by outside forces.

You are essentially an impersonal machine. Your capacities and output are strictly determined by your make and external influences. Just as a steam-engine is built from raw ores through patient external processes, a human being is constructed and trained by heredity, habitat, and associations. You originate no thoughts or ideas independently and can only utilize materials gathered from the outside.

The comparison of a stone engine versus a steel engine illustrates this dynamic. The metal machine performs advanced work due to extensive external smelting, exactly as a civilized man differs from a savage.

The Mechanical Mind

Your brain can originate nothing whatsoever, not even a single thought or opinion. All thoughts and impulses flow into you from outside sources, such as books, conversations, and ancestral streams. Even historical figures like Adam or Shakespeare produced nothing original; they merely absorbed outside influences and imitated what they observed.

Adam had no innate fear of death or knowledge of good and evil until those ideas were brought to him from the outside.

Your mind operates automatically like a machine and is completely independent of conscious control. The mind works unceasingly during every waking moment and even through the night, refusing to stop when ordered to rest. It chases whatever subjects it finds most stimulating without needing help from the conscious man.

People tossing about all night trying to command their minds to stop working find that the mind continues working on its own track.

Personal Merit and Training

The human mind operates as an independent automatic machine that cannot be forced by conscious will. When you attempt to command your mind to stand ready for morning orders, focus on uninteresting math texts, or dwell on an old insult, the mind refuses and follows its own course. It sings songs, plays chess, and runs dreams entirely without human guidance.

The Young Man tried ten times to command his mind to stand ready upon waking, but scored zero successes; he also failed to force his mind to stay on an uninteresting debt calculation text instead of a photograph or a violent memory.

• Command your mind to wait for orders from you before waking.
• Appoint a theme for your mind to begin thinking on in the morning.
• Place two texts before your eyes, one dull and one interesting, and command your mind to busy itself solely with the dull one.

Because all human qualities and achievements are products of innate make and outside training, no individual can claim personal merit for them. Just as a steam-engine deserves no credit for its condition, a brave man is merely displaying the results of his seed and proper training. Actions are driven entirely by outside forces acting upon your inherent nature.

A timid man who becomes brave in battle does so because training and the fear of shame work upon his seed of courage, leaving no room for personal merit.

2. The Master Impulse of Self-Approval

From cradle to grave, every human act is prompted by one master impulse: the necessity of securing peace of mind and self-approval for yourself. You never perform an act primarily for another person's good. The act must first content your own spirit, relieve your own pain, or satisfy your own conscience. Philanthropy and self-sacrifice are merely disguises for this singular internal drive.

Every human action is prompted by the singular necessity of securing personal peace of mind and self-approval.

A man who gives twenty-five cents to a freezing old beggar woman at midnight and walks home in the storm is actually buying relief from his own heart pain and conscience torture.

Hidden Motives

No human act is ever born of a purely self-sacrificing impulse. Every action is designed to satisfy the internal master and secure personal contentment first. The action must benefit your spirit first, while any benefit to others remains secondary.

A lumberman named Holme abandons his prospects to preach in the New York slums, believing he is sacrificing himself. He actually ruins his family and returns home heartbroken because he failed to gain praise while playing for a high profit in soul-captures.

Travelers in Europe worry over how much to tip hotel servants simply to avoid a shameful glance and win the servant's approval. The calculation is spent figuring out what will content the servant so you can escape discomfort. Public opinion can force even kind men to commit acts contrary to their conscience. Alexander Hamilton regarded dueling as wrong, yet he fought a duel and threw his life away to defer to public standards of honor.

The Master Passion

A man's conscience is an independent absolute master inside the man that must be trained. A kind-hearted Kentuckian suffered conscience trouble for neglecting his duty to kill a stranger who had killed his friend, eventually taking the stranger's life to gain ease of mind.

There is no such thing as material covetousness. All desires and values are purely spiritual symbols meant to content the spirit. Objects like money and fame have no intrinsic material worth. A man labored relentlessly for a fortune, but when a pestilence swept away his family, his joy in the money vanished because the spiritual contentment derived from their enjoyment was gone.

The governing force in human action is the Master Passion, which is a blind instinct demanding the continuous contentment of the spirit through self-approval. Whether you become a merchant or a scholar, you obey the dictate of your unique temperament. A scholar chooses to remain in a garret among books because his spiritual appetite prefers books.

3. Association and the Limits of Reform

Association dictates human beliefs and morals while temperament sets a permanent limit on moral improvement.

Power of Association

Human beings act like chameleons, taking the color of their environment. You do not independently seek out truth through logic. Your nationality and social circle determine your beliefs, and you spend your life defending them rather than questioning them.

A man's nationality predicts his religious affiliation, such as Americans being Protestant and Spaniards being Roman Catholic. There are about three thousand religious options available on the market. The Order of the Jesuits operated with immense impact for two hundred years resulting from a chance accident.

You cannot originate an impulse to reform entirely from within. The initial trigger must come from the outside, such as a chance remark or reading a book. Governments and individuals can best improve society by laying traps baited with initiatory impulses toward high ideals.

Temperament and Environment

God does not create inherently honest men. He creates men with both honest and dishonest possibilities, which are then developed by association. Training and environment dictate which set of innate possibilities will ultimately be cultivated.

Two New England twin boys with identical good dispositions and feckless morals diverged entirely in character. Twin boy George went away as a cabin-boy at age fifteen. At age twenty-two George was a rough in Hong-Kong and Henry a Sunday-school superintendent. At age twenty-six George returned home as a tramp and Henry was a village pastor, solely due to the differing outside influences they encountered.

Training can suppress your born temperament, but it can never completely eradicate it. While you can improve your behavior through training, your innate disposition remains a permanent limit. A warm temper will occasionally break through the pressure of training, meaning reform reaches a natural ceiling defined by temperament.

An old family servant served for twenty-two years and became forgetful. A person trying hard to control their morning temper and speak gently to the servant will improve significantly over the years, but will still occasionally snap when caught off guard by their innate disposition.

• Diligently train your ideals upward toward a summit where you will find your chiefest pleasure in conduct which confers benefits upon your neighbor and the community.

4. Instinct, Thought, and Free Choice

Human beings originate and create nothing new. Your brain merely perceives and automatically combines existing facts. Inventions and literary works are not products of independent creation but slow accumulations of observations made by many observers over centuries.

James Watt observed confined steam lifting a teapot lid and evolved the cylinder and piston-rod. This breakthrough relied on fifty men whose observations took a hundred years to build the steam engine.

Instinct as Petrified Thought

Instinct is not a separate mental quality from reason. It is merely petrified thought solidified and made unconscious by inherited habit. Habits that animals and humans perform automatically without immediate thought originally began as conscious observations.

An old horse of the Old Man's uncle learned to open the closed lot gate by pulling out the wooden pin with its teeth to reach the corn-crib.

Ants demonstrate complex reasoning, architecture, government, and memory that rival human savage races. They remove any intellectual frontier between man and animals.

Ants build houses that reach eight feet high and are enduring. A single ant hive contains five hundred thousand souls. Ants in Texas lay out and cultivate a farm measuring twelve feet square.

The Illusion of Free Will

Free will does not exist as an actual power.

You possess only Free Choice guided entirely by your inborn temperament, training, and environment. The mind can evaluate which of two courses is right, much like a thermometer registering temperature, but it has no authority to enforce that choice.

David fought Goliath because his temperament compelled it. A born coward perceives that fighting is right but cannot attempt it due to insurmountable inborn cowardice. Your born temperament and external training compel your final action without leaving room for unconstrained personal freedom.

5. Circumstance, Grief, and History Mapping

Life outcomes are driven by circumstance and temperament, while physical space can anchor historical chronology.

Circumstance acts as the master and planner by throwing events in your path. Temperament dictates how you react to those external shocks. That temperament is permanently fixed at birth and cannot be altered by training.

Twain's childhood measles epidemic led his mother to apprentice him as a printer, starting the chain that led to his literary career. Later, finding a lost fifty-dollar bill sent him toward the Amazon. What you call the turning-point in life is merely the last link in a vast chain of preceding events.

Julius Caesar's crossing of the Rubicon is viewed as a monumental turning-point. It was merely the final link preceded by ten thousand equally vital occurrences, including a casual stranger blowing a trumpet. Jean Clemens died suddenly on December 24, 1909, from an epileptic seizure at Stormfield. Twain reflects on how insignificant everyday details preceding a sudden death become flooded with pathos, asserting that he would not bring Jean back to life if he could.

Loss and Grief

Educational Methods

History dates are hard to remember as raw figures. They become permanently fixed in memory when you translate them into self-drawn pictures. Twain used whales, hens, lions, and steers to represent successive English monarchs when teaching history to his children.

You can map historical chronology by turning physical space into a visible timeline. You measure out a roadway where each foot represents a year of history, spanning 817 years of English history along the farm road.

You execute this visual mapping method through specific steps:

• measure off a length of roadway where a foot represents a year of history;
• drive white pine stakes at the beginning and end of each reign;
• write the monarch's name and dates on each stake;
• trot the course with children, calling out names and dates as you pass the stakes.

6. Notoriety, Reform, and Cultural Observations

The universal hunger for notoriety drives crime and public spectacles, while political freedom and specialized art reveal human social tendencies.

The Hunger for Notoriety

Every human mind harbors some form of incipient madness, whether driven by money or notoriety. From children showing off to adults seeking fame, the desire for distinction rules actions. An obscure individual can achieve instant global notoriety and outstrip traditional heroes simply by committing a shocking crime.

The Empress of Austria was assassinated in Geneva on September 10, 1898, by an Italian tramp, creating universal mourning. News of the assassination reached an Austrian village in three hours, electrifying the world in a way impossible in ancient Roman times. This singular event broke a gap spanning twenty centuries since an empress was last murdered.

Strip away clothes and titles, and all human beings are essentially the same poor quality of clay. Military commanders and magistrates all secretly treasure and boast about any trivial past contact they had with an assassin.

Harshly punishing and making martyrs out of early rebels often backfires, inspiring copycats and escalating into widespread social revolt. In Marion City, Missouri, in 1845, the public execution of Robert Hardy, an early abolitionist, inspired copycats that ultimately led to violence. Fifty years later, a similar dynamic appeared during the author's stay in La Bourboule-les-Bains, France.

Travel and Cultural Observations

Switzerland stands out historically as a rare nation whose centuries-long struggle for liberty was waged for the entire nation rather than private dynasties. The Swiss peasantry maintained a political atmosphere free of slavery for six hundred years, preserving the legacy of William Tell and the Rutli oath since 1291.

Natural geographical formations can serve as gigantic clocks when shifting shadows create distinct human profiles across mountain snows at predictable times. You can observe the Jungfrau mountain using specific visual checks:

• observe the Jungfrau mountain around 4 P.M. when shadow No. 1 begins to take the shape of a human profile;
• watch the features develop, noting the military cap and bold nose by 4:40 P.M.;
• track the further transformation into a likeness resembling Roscoe Conkling by 5:00 P.M.;
• note the final dissolution of the face and the formation of a tower-like shadow by 6:00 P.M.

The Bayreuth opera-house serves as the model theater of the world due to its architectural layout that prevents crowding and allows rapid evacuation. The auditorium holds 1,650 persons across 18 doors, with each ticket assigning a specific door so that the building empties rapidly. Wagnerian audiences maintain a striking silence and stillness during performances, sitting through acts with retention of their initial posture.

Pilgrims visiting Bayreuth face severe shortages of proper food and must scramble daily for meager restaurant meals. You can avoid starvation during a visit by following one simple rule:

• bring your dinner-pail with you if you intend to visit the Wagner season to avoid starvation.

7. Literary Mastery and Language Reform

Literary Criticism

William Dean Howells maintains an exceptional mastery of English prose characterized by verbal exactness, compression, and unforced rhythm. You can observe this quality across decades of writing without finding a flawed cadence or a vague approximation.

Howells possesses the rare ability to capture the exact right word effortlessly, functioning like quicksilver raiding down a riffle to catch every grain of gold. Twain compares Howells's sustained prose quality to a cloudless moon, contrasting it with other authors who only display rich qualities at intervals.

Language Reform

The traditional English alphabet is inherently incapable of proper spelling and requires excessive labor compared to the phonographic alphabet. Isaac Pitman made scientific phonography public 73 years ago, providing a system that allows writers to spell any word accurately by sound.

Adopting a phonographic writing system would multiply writing speed and save years of labor in daily tasks and publishing. You can measure the physical savings directly:

• writing the word through requires 21 strokes in the present form;
• writing through takes 12 strokes in simplified form;
• writing through requires only 3 strokes using the phonographic alphabet.

Writing the words Man Dog Horse takes 10 pen-strokes in the phonographic system compared to 33 strokes in the standard system. Twain notes his own timed copying gait at 24 words per minute, reaching 1,500 words per hour.

8. Bicycle Physics and Shakespearean Conjectures

Learning physical skills requires overriding natural instincts, and biographical speculation builds towering structures on meager facts.

Taming the Bicycle

When a novice rider begins falling, instinct drives them to turn the tiller the opposite way, which violates physical laws and causes a crash. The intellect must actively step in to retrain the body to turn the wheel in the exact direction the machine is falling.

Twain describes his numerous violent crashes into his instructor during his twelve hours of apprenticeship on a fifty-inch high-wheel bicycle. You can master the machine by following eight days of daily lessons of an hour and a half using specific physical steps:

• Hop along behind the bicycle on your right foot, resting the other on the mounting-peg and grasping the tiller with your hands.
• Rise on the peg, stiffen your left leg, hang your other leg around in the air, and lean your stomach against the rear of the saddle.
• Let your legs dangle and perfect your balance before reaching for the pedals.
• To perform a voluntary dismount, let your left pedal go down till your left leg is nearly straight, turn your wheel to the left, and get off as you would from a horse.

Is Shakespeare Dead?

Biographers take a handful of minor facts and use them to construct towering mountains of speculative conjectures. Historians build a fifty-seven feet long brontosaur skeleton from nine bones and plaster of Paris.

William Shakespeare was born on the 23d of April, 1564 and died in 1816 at the age of fifty-two. In his meticulous business man's will, Shakespeare distributed every item of property down to his second-best bed, but mentioned not a single book, play, poem, or scrap of manuscript.

10 Key Ideas

1. Human beings operate entirely as determined automatic machines shaped by heredity, habitat, and association rather than originating any thoughts independently.
2. Every human act is driven by the master impulse of securing personal peace of mind and self-approval.
3. Association dictates human beliefs and morals, making people act like chameleons by taking the color of their environment.
4. Temperament sets a permanent limit on moral improvement because training can only suppress, but never completely eradicate, a born disposition.
5. Free will does not exist as an actual power, leaving humans with only free choice guided entirely by their inborn temperament, training, and environment.
6. Life outcomes are driven by circumstance and temperament, where what is called a turning-point in life is merely the last link in a vast chain of preceding events.
7. The universal hunger for notoriety drives crime and public spectacles, mirroring how an obscure individual can achieve instant global notoriety by committing a shocking crime.
8. William Dean Howells maintains an exceptional mastery of English prose characterized by verbal exactness, compression, and unforced rhythm.
9. Learning physical skills like riding a bicycle requires the intellect to actively override natural instincts that otherwise violate physical laws and cause crashes.
10. Biographers take a handful of minor facts and use them to construct towering mountains of speculative conjectures, much like William Shakespeare leaving no mention of books or manuscripts in his meticulous business man's will.