Utilitarianism in the context of Preference utilitarianism

John Stuart Mill (20 May 1806 – 7 May 1873) was an English philosopher, political economist, politician and civil servant. One of the most influential thinkers in the history of liberalism and social liberalism, he contributed widely to social theory, political theory, and political economy. Dubbed "the most influential English-speaking philosopher of the nineteenth century" by the Stanford Encyclopedia of Philosophy, he conceived of liberty as justifying the freedom of the individual in opposition to unlimited state and social control. He advocated political and social reforms such as proportional representation, the emancipation of women, and the development of labour organisations and farm cooperatives.

The Columbia Encyclopedia describes Mill as occasionally coming "close to socialism, a theory repugnant to his predecessors". He was a proponent of utilitarianism, an ethical theory developed by his predecessor Jeremy Bentham. He contributed to the investigation of scientific methodology, though his knowledge of the topic was based on the writings of others, notably William Whewell, John Herschel, and Auguste Comte, and research carried out for Mill by Alexander Bain. He engaged in written debate with Whewell.

In moral philosophy, deontological ethics or deontology (from Ancient Greek δέον (déon) 'duty, obligation' and -λογία (-logía) 'study of') is the normative ethical theory that the morality of an action should be based on whether that action itself is right or wrong under a series of rules and principles, rather than based on the consequences of the action. It is sometimes described as duty-, obligation-, or rule-based ethics. Deontological ethics is commonly contrasted to utilitarianism and other consequentialist theories, virtue ethics, and pragmatic ethics. In the deontological approach, the inherent rightfulness of actions is considered more important than their consequences.

The term deontological was first used to describe the current, specialised definition by C. D. Broad in his 1930 book, Five Types of Ethical Theory. Older usage of the term goes back to Jeremy Bentham, who coined it prior to 1816 as a synonym of dicastic or censorial ethics (i.e., ethics based on judgement). The more general sense of the word is retained in French, especially in the term code de déontologie (ethical code), in the context of professional ethics.

A virtue (Latin: virtus) is a trait of excellence, including traits that may be moral, social, or intellectual. The cultivation and refinement of virtue is held to be the "good of humanity" and thus is valued as an end purpose of life or a foundational principle of being. In human practical ethics, a virtue is a disposition to choose actions that succeed in showing high moral standards: doing what is said to be right and avoiding what is wrong in a given field of endeavour, even when doing so may be unnecessary from a utilitarian perspective. When someone takes pleasure in doing what is right, even when it is difficult or initially unpleasant, they can establish virtue as a habit. Such a person is said to be virtuous through having cultivated such a disposition. The opposite of virtue is vice.

Other examples of this notion include the concept of merit in Asian traditions as well as De (Chinese 德).

In philosophy, economics, and political science, the common good (also commonwealth, common weal, general welfare, or public benefit) is either what is shared and beneficial for all or most members of a given community, or alternatively, what is achieved by citizenship, collective action, and active participation in the realm of politics and public service. The concept of the common good differs significantly among philosophical doctrines. Early conceptions of the common good were set out by Ancient Greek philosophers, including Aristotle and Plato. One understanding of the common good rooted in Aristotle's philosophy remains in common usage today, referring to what one contemporary scholar calls the "good proper to, and attainable only by, the community, yet individually shared by its members."

The concept of common good developed through the work of political theorists, moral philosophers, and public economists, including Thomas Aquinas, Niccolò Machiavelli, John Locke, Jean-Jacques Rousseau, James Madison, Adam Smith, Karl Marx, John Stuart Mill, John Maynard Keynes, John Rawls, and many other thinkers. In contemporary economic theory, a common good is any good which is rivalrous yet non-excludable, while the common good, by contrast, arises in the subfield of welfare economics and refers to the outcome of a social welfare function. Such a social welfare function, in turn, would be rooted in a moral theory of the good (such as utilitarianism). Social choice theory aims to understand processes by which the common good may or may not be realized in societies through the study of collective decision rules. Public choice theory applies microeconomic methodology to the study of political science in order to explain how private interests affect political activities and outcomes.

Istislah (Arabic: استصلاح, lit. 'to deem proper') is a method employed by Islamic jurists to solve problems that find no clear answer in sacred religious texts. It is related to the term مصلحة Maslaha, or "public interest" (both words being derived from the same triconsonantal root, "ṣ-l-ḥ"). Extratextual pragmatic considerations are commonly accepted in Islamic jurisprudence concerning areas where the Qur'an and the practices of the earliest Muslim generations (Salaf) provide no specific guidance.

Istislah bears some similarities to the natural law tradition in the West, as exemplified by Thomas Aquinas. However, whereas natural law deems good that which is known self-evidently to be good, according as it tends towards the fulfilment of the person, istislah calls good whatever is connected to one of five "basic goods". Al-Ghazali abstracted these "basic goods" from the five legal precepts in the Qur'an and Sunnah—religion, life, reason, lineage (or offspring), and property. In this classical formulation, istislah differs from utilitarianism—"the greatest happiness for the greatest number of people"—because something that results in "the greatest happiness" may infringe any one of the five basic values. Rather than utilitarianism, Istislah bears closer resemblance to deontologicalism.

In economics, utility is a measure of a certain person's satisfaction from a certain state of the world. Over time, the term has been used with at least two meanings.

• In a normative context, utility refers to a goal or objective that we wish to maximize, i.e., an objective function. This kind of utility bears a closer resemblance to the original utilitarian concept, developed by moral philosophers such as Jeremy Bentham and John Stuart Mill.
• In a descriptive context, the term refers to an apparent objective function; such a function is revealed by a person's behavior, and specifically by their preferences over lotteries, which can be any quantified choice.

The relationship between these two kinds of utility functions has been a source of controversy among both economists and ethicists, with most maintaining that the two are distinct but generally related.

Mohism or Moism (/ˈmoʊɪzəm/, Chinese: 墨家; pinyin: Mòjiā; lit. 'School of Mo') was an ancient Chinese philosophy of ethics and logic, rational thought, and scientific technology developed by the scholars who studied under the ancient Chinese philosopher Mozi (c. 470 BC – c. 391 BC), embodied in an eponymous book: the Mozi. Among its major ethical tenets were altruism and a universal, unbiased respect and concern for all people, stressing the virtues of austerity and utilitarianism. Illuminating its original doctrine, later Mohist logicians were pivotal in the development of Chinese philosophy.

Mohism developed at about the same time as Confucianism, Taoism and Legalism, and was one of the four main philosophic schools from around 770–221 BC, during the Spring and Autumn and Warring States period. During that time, Mohism was seen as a major rival to Confucianism. While its influence endured, Mohism almost disappeared as an independent school of thought as it transformed and integrated into sects of Taoism in the wake of the cultural transformations of the Qin dynasty, after 221 BC.

On Liberty is an essay published in 1859 by the English philosopher John Stuart Mill. It applied Mill's ethical system of utilitarianism to society and state. Mill suggested standards for the relationship between authority and liberty. He emphasized the importance of individuality, which he considered a prerequisite to the higher pleasures—the summum bonum of utilitarianism. Furthermore, Mill asserted that democratic ideals may result in the tyranny of the majority. Among the standards proposed are Mill's three basic liberties of individuals, his three legitimate objections to government intervention, and his two maxims regarding the relationship of the individual to society.

On Liberty was a greatly influential and well-received work. Some classical liberals and libertarians have criticized it for its apparent discontinuity with Utilitarianism, and vagueness in defining the arena within which individuals can contest government infringements on their personal freedom of action. The ideas presented in On Liberty have remained the basis of much political thought. It has remained in print since its initial publication. A copy of On Liberty is passed to the president of the British Liberal Democrats as a symbol of office.

Moral universalism (also called moral objectivism) is the meta-ethical position that some system of ethics, or a universal ethic, applies universally, that is, for "all similarly situated individuals", regardless of culture, disability, race, sex, religion, nationality, sexual orientation, gender identity, or any other distinguishing feature. Moral universalism is opposed to moral nihilism and moral relativism. However, not all forms of moral universalism are absolutist, nor are they necessarily value monist; many forms of universalism, such as utilitarianism, are non-absolutist, and some forms, such as that of Isaiah Berlin, may be value pluralist.

In addition to the theories of moral realism, moral universalism includes other cognitivist moral theories, such as the subjectivist ideal observer theory and divine command theory, and also the non-cognitivist moral theory of universal prescriptivism.

Jeremy Bentham (/ˈbɛnθəm/; 4 February 1747/8 O.S. [15 February 1748 N.S.] – 6 June 1832) was an English philosopher, jurist, and social reformer regarded as the founder of modern utilitarianism.

Bentham defined as the "fundamental axiom" of his philosophy the principle that "it is the greatest happiness of the greatest number that is the measure of right and wrong". He became a leading theorist in Anglo-American philosophy of law, and a political radical whose ideas influenced the development of welfarism. He advocated individual and economic freedoms, the separation of church and state, freedom of expression, equal rights for women, the right to divorce, and (in an unpublished essay) the decriminalizing of homosexual acts. He called for the abolition of slavery, capital punishment, and physical punishment, including that of children. He has also become known as an early advocate of animal rights. Though strongly in favour of the extension of individual legal rights, he opposed the idea of natural law and natural rights (both of which are considered "divine" or "God-given" in origin), calling them "nonsense upon stilts". However, he viewed the Magna Carta as important, citing it to argue that the treatment of convicts in Australia was unlawful. Bentham was also a sharp critic of legal fictions.

Sentience is the ability to experience feelings and sensations. It may not necessarily imply higher cognitive functions such as awareness, reasoning, or complex thought processes. Some theorists define sentience exclusively as the capacity for valenced (positive or negative) mental experiences, such as pain and pleasure.

Sentience is an important concept in ethics, as the ability to experience happiness or suffering often forms a basis for determining which entities deserve moral consideration, particularly in utilitarianism.

The intersections of morality and religion involve the relationship between religious views and morals. It is common for religions to have value frameworks regarding personal behavior meant to guide adherents in determining between right and wrong. These include the Triple Gems of Jainism, Islam's Sharia, Catholicism's Catechism, Buddhism's Noble Eightfold Path, and Zoroastrianism's "good thoughts, good words, and good deeds" concept, among others. Various sources - such as holy books, oral and written traditions, and religious leaders - may outline and interpret these frameworks. Some religious systems share tenets with secular value-frameworks such as consequentialism, freethought, and utilitarianism.

Religion and morality are not synonymous. Though religion may depend on morality,and even develop alongside morality,morality does not necessarily depend upon religion, despite some making "an almost automatic assumption" to this effect. According to The Westminster Dictionary of Christian Ethics, religion and morality "are to be defined differently and have no definitional connections with each other. Conceptually and in principle, morality and a religious value system are two distinct kinds of value systems or action guides." In the views of some, morality and religion can overlap.One definition sees morality as an active process which is, "at the very least, the effort to guide one's conduct by reason, that is, doing what there are the best reasons for doing, while giving equal consideration to the interests of all those affected by what one does."

The sociology of punishment seeks to understand why and how we punish. Punishment involves the intentional infliction of pain and/or the deprivation of rights and liberties. Sociologists of punishment usually examine state-sanctioned acts in relation to law-breaking; for instance, why citizens give consent to the legitimation of acts of violence.

Two of the most common political and ethical motivations for formal punishment are utilitarianism and retributivism. Both these concepts have been articulated by law-makers and law-enforcers, but may be seen as descriptive rather than explanative. Sociologists note that although attempts of justification are made in terms of these principles, this does not fully explain why violent punitive acts occur. Social psychology and symbolic interactionism often inform theory and method in this area.

Animal ethics is a branch of ethics which examines human-animal relationships, the moral consideration of animals and how nonhuman animals ought to be treated. The subject matter includes animal rights, animal welfare, animal law, speciesism, animal cognition, wildlife conservation, wild animal suffering, the moral status of nonhuman animals, the concept of nonhuman personhood, human exceptionalism, the history of animal use, and theories of justice. Several different theoretical approaches have been proposed to examine this field, in accordance with the different theories currently defended in moral and political philosophy. There is no theory which is completely accepted due to the differing understandings of what is meant by the term ethics; however, there are theories that are more widely accepted by society such as animal rights and utilitarianism.