『Utilitarianism』要約

"Utilitarianism" by John Stuart Mill, published in 1863, is a foundational text in ethical philosophy that elaborates on the moral theory of utilitarianism, originally developed by Jeremy Bentham. Mill’s work seeks to refine and defend this consequentialist framework, emphasizing the principle of the greatest happiness, which asserts that the best action is the one that maximizes overall happiness for the greatest number of people. In the book, Mill distinguishes between higher and lower pleasures, arguing that intellectual and moral pleasures are superior to more base forms of enjoyment. This qualitative distinction is a critical aspect of his utilitarianism, as it suggests that some types of happiness are more valuable than others, countering Bentham’s more quantitative approach. He introduces concepts such as the "harm principle" and the importance of justice as a pillar supporting utilitarian ethics. Mill also addresses criticisms of utilitarianism, particularly those concerning its feasibility and moral implications. He provides counterarguments to the idea that utilitarianism promotes a cold calculus devoid of moral feelings, illustrating that genuine happiness encompasses affection, loyalty, and justice. Furthermore, he discusses the societal implications of utilitarianism, asserting that a moral society is one that is guided by the pursuit of the common good, thus anchoring individual actions in a collective ethical framework. The book is structured into five chapters, where Mill methodically builds his argument, starting with a definition of utilitarianism and progressing to its application and implications. Through this work, Mill aims to show that utilitarianism is not only a practical ethical guide but also alignable with common human values and social justice, making it an essential contribution to moral philosophy.