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Mill defends the Greatest Happiness Principle, the view that the right action is the one producing the most well-being, and argues that higher pleasures of the mind outweigh lower pleasures of the body, and that justice is ultimately grounded in utility.
Mind Map
Core Message
The Greatest Happiness Principle holds that actions are right in proportion as they tend to promote happiness and wrong as they tend to produce the reverse. Happiness means pleasure and the absence of pain; the whole of morality is built on this foundation.
Mill distinguishes higher from lower pleasures. Those who have experience of both consistently prefer the pleasures of the intellect, feeling, and moral sense over mere sensation. A being of higher faculties would not trade down even for more total pleasure of a lower kind, because the difference is one of kind, not degree.
The standard is not the agent's own greatest happiness but the greatest amount of happiness altogether. The utilitarian moralist must weigh every person's well-being equally and resist any self-preferring impulse that cannot survive impartial scrutiny.
The sense of justice is not a separate faculty standing apart from utility. It is the application of utility to those interests, above all security, that are so indispensable to every person that their protection calls forth an especially intense moral demand.
Summary
Utilitarianism opens by noting that philosophy has never settled the question of what makes actions right or wrong. Mill argues that the utilitarian answer, the Greatest Happiness Principle, has in fact shaped moral thinking across rival schools without being clearly acknowledged. His aim is to correct common misunderstandings and then offer such grounds for accepting the principle as the subject admits.
Chapter II defines the doctrine. Utility is not opposed to pleasure; it is pleasure itself and the absence of pain. Mill then introduces the crucial distinction between higher and lower pleasures. Those who are competently acquainted with both give a decided preference to the pleasures of the intellect, imagination, and moral feeling. The famous formulation follows: it is better to be a human being dissatisfied than a pig satisfied, better to be Socrates dissatisfied than a fool satisfied. Utilitarianism therefore requires cultivating nobleness of character, both because noble character makes others happier and because the standard is the greatest happiness of all, not of the individual agent alone.
Chapter III addresses motivation. The external sanctions of social approval, legal pressure, and the fear of God attach to utilitarian morality as readily as to any other. The deeper, internal sanction is conscience itself: the subjective pain that accompanies the violation of duty. Mill argues that the feeling of unity with other human beings, when fully cultivated through education, supplies all the motive force that utilitarian morality requires.
Chapter IV takes up proof. Ultimate ends cannot be demonstrated by direct argument, but they can be shown to be what people actually desire. Each person desires their own happiness; therefore the general happiness is desirable as a good to the aggregate of all persons. Mill further argues that other apparent ends (virtue, money, fame, power) are either already parts of happiness or have become so through association, so that nothing is ultimately desired except happiness.
Chapter V is the longest and addresses justice. Mill surveys the many things called just or unjust (respecting legal rights, meeting moral rights, giving desert, keeping faith, maintaining impartiality) and finds that what distinguishes justice from other moral duties is the presence of a right residing in an individual who can claim it. The sentiment of justice, he argues, is the natural impulse of self-defence and sympathy, widened by intelligence and sympathy to cover all persons. Justice is utility concentrated on the interest of security, the most vital of all interests, which is why the demand of justice feels absolute while ordinary calculations of expedience feel provisional.
Key Concepts
Actions are right in proportion as they tend to promote happiness and wrong as they tend to produce unhappiness. Happiness is pleasure and the absence of pain; unhappiness is pain and the privation of pleasure.
This is the master criterion of right and wrong. Every other utilitarian claim, about quality of pleasures, impartiality, proof, and justice, derives from or defends this principle.
Pleasures differ in kind, not merely in quantity. Those competently acquainted with both kinds consistently prefer the pleasures of the intellect, imagination, and moral sense, even when they involve more dissatisfaction.
It answers the objection that utilitarianism is a doctrine worthy only of swine, and it explains why the theory demands cultivation of human faculties rather than mere maximization of animal contentment.
Justice is not an independent moral faculty but utility applied to the interests so vital, especially security, that their protection raises an unusually powerful and categorical moral demand.
It reconciles the intuitive absoluteness of just claims with a consequentialist foundation, showing that justice is the part of utility that concerns each person's most indispensable interests.
Mental Models
The quality of a pleasure is decided by those who have experience of both the pleasure in question and the alternatives. Their settled preference, not a priori calculation, determines which pleasures are higher.
It gives utilitarianism an empirical test for comparing pleasures that avoids both pure hedonistic counting and arbitrary stipulation.
Utilitarian morality requires the agent to count their own happiness as no more than equal to the happiness of any other person when deciding what to do.
It transforms private desire into a moral standard by demanding impartiality, and it explains why the greatest happiness of all, not of the agent, is the correct goal.
Things originally desired only as instruments to happiness, such as virtue, money, and power, can through association become parts of happiness itself, desired for their own sake.
It explains how a person can love virtue intrinsically while the utilitarian foundation remains intact: virtue has become an ingredient of happiness, not a rival principle.
Selected Quotes
Greatest Happiness Principle, holds that actions are right in proportion as they tend to promote happiness, wrong as they tend to produce the reverse of happiness.
It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied.
happiness is a good: that each person's happiness is a good to that person, and the general happiness, therefore, a good to the aggregate of all persons.
Source
Source text: Project Gutenberg edition of Utilitarianism by John Stuart Mill.
HTML text: https://www.gutenberg.org/cache/epub/11224/pg11224.txt
Project Gutenberg states this ebook is for the use of anyone anywhere in the United States and most other parts of the world at no cost and with almost no restrictions whatsoever.
Originally published in Fraser's Magazine in 1863; this edition is the seventh, published by Longmans, Green, and Co., 1879.