Overview
This short work introduces a consequentialist approach to ethics, asking whether actions should be judged by their tendency to promote happiness. It is useful because it gives beginners one clearly stated moral theory to understand and test against difficult cases.
This title is catalogued in Philosophy & Ideas. Its reading profile is Short and Advanced, with themes including utility, happiness, morality, liberty, justice.
One-Page Summary
In Utilitarianism, John Stuart Mill defends a moral theory built around one demanding question: which actions tend to produce the greatest overall happiness? Mill identifies happiness with pleasure and the absence of pain, but he argues against reducing every form of pleasure to a simple quantity. Intellectual, emotional, and moral pleasures can be higher in kind as well as different in degree from merely bodily enjoyment. The famous “greatest happiness” principle therefore becomes more complicated than a crude calculation of pleasure points. Mill also addresses common objections.
If morality is based on happiness, must every person constantly calculate outcomes? Does utilitarianism sacrifice justice or individual rights whenever doing so benefits the majority? Mill answers by explaining how moral rules, social expectations, and the security people need can themselves arise from their consequences for human well-being. He wants ethics to be both impartial and practical: each person's happiness counts, and morality should be judged by its effects on the lives of people who are affected. The work is short enough to read as an introduction to consequentialism but rich enough to raise difficult cases.
It asks the reader to shift moral attention away from intention alone and toward outcomes—not simply, “Was your action sincere?” but “What did it actually do to everyone involved?”
Key Themes
Utility: This title is tagged with utility as one of its main themes.
Happiness: This title is tagged with happiness as one of its main themes.
Morality: This title is tagged with morality as one of its main themes.
Liberty: This title is tagged with liberty as one of its main themes.
Justice: This title is tagged with justice as one of its main themes.
Ethics: This title is tagged with ethics as one of its main themes.