Moral philosophy in the context of "Practical philosophy"

The modern division of philosophy into theoretical philosophy and practical philosophy has its origin in Aristotle's categories of natural philosophy and moral philosophy. The one has theory for its object, and the other practice.

Morality (from Latin moralitas 'manner, character, proper behavior') is the categorization of intentions, decisions and actions into those that are proper, or right, and those that are improper, or wrong. Morality can be a body of standards or principles derived from a code of conduct from a particular philosophy, religion or culture, or it can derive from a standard that is understood to be universal. Morality may also be specifically synonymous with "goodness", "appropriateness" or "rightness".

Moral philosophy includes meta-ethics, which studies abstract issues such as moral ontology and moral epistemology, and normative ethics, which studies more concrete systems of moral decision-making such as deontological ethics and consequentialism. An example of normative ethical philosophy is the Golden Rule, which states: "One should treat others as one would like others to treat oneself."

Liberalism is a political and moral philosophy based on the rights of the individual, liberty, consent of the governed, political equality, right to private property, and equality before the law. Liberals espouse various and sometimes conflicting views depending on their understanding of these principles but generally support private property, market economies, individual rights (including civil rights and human rights), liberal democracy, secularism, rule of law, economic and political freedom, freedom of speech, freedom of the press, freedom of assembly, and freedom of religion. Liberalism is frequently cited as the dominant ideology of modern history.

Liberalism became a distinct movement in the Age of Enlightenment, gaining popularity among Western philosophers and economists. Liberalism sought to replace the norms of hereditary privilege, state religion, absolute monarchy, the divine right of kings and traditional conservatism with representative democracy, rule of law, and equality under the law. Liberals also ended mercantilist policies, royal monopolies, and other trade barriers, instead promoting free trade and marketization. The philosopher John Locke is often credited with founding liberalism as a distinct tradition based on the social contract, arguing that each man has a natural right to life, liberty and property, and governments must not violate these rights. While the British liberal tradition emphasized expanding democracy, French liberalism emphasized rejecting authoritarianism and is linked to nation-building.

In moral philosophy, consequentialism is a class of normative, teleological ethical theories that holds that the consequences of one's conduct are the ultimate basis for judgement about the rightness or wrongness of that conduct. Thus, from a consequentialist standpoint, a morally right act (including omission from acting) is one that will produce a good outcome. Consequentialism, along with eudaimonism, falls under the broader category of teleological ethics, a group of views which claim that the moral value of any act consists in its tendency to produce things of intrinsic value. Consequentialists hold in general that an act is right if and only if the act (or in some views, the rule under which it falls) will produce, will probably produce, or is intended to produce, a greater balance of good over evil than any available alternative. Different consequentialist theories differ in how they define moral goods, with chief candidates including pleasure, the absence of pain, the satisfaction of one's preferences, and broader notions of the "general good".

Consequentialism is usually contrasted with deontological ethics (or deontology): deontology, in which rules and moral duty are central, derives the rightness or wrongness of one's conduct from the character of the behaviour itself, rather than the outcomes of the conduct. It is also contrasted with both virtue ethics, which is concerned with the character of the agent rather than on the nature or consequences of the act (or omission) itself, and pragmatic ethics, which treats morality like science: advancing collectively as a society over the course of many lifetimes, such that any moral criterion is subject to revision.

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.

In moral and political philosophy, the social contract is an idea, theory, or model that usually, although not always, concerns the legitimacy of the authority of the state over the individual. Conceptualized in the Age of Enlightenment, it is a core concept of constitutionalism, while not necessarily convened and written down in a constituent assembly and constitution.

Social contract arguments typically are that individuals have consented, either explicitly or tacitly, to surrender some of their freedoms and submit to the authority (of the ruler, or to the decision of a majority) in exchange for protection of their remaining rights or maintenance of the social order. The relation between natural and legal rights is often a topic of social contract theory. The term takes its name from The Social Contract (French: Du contrat social ou Principes du droit politique), a 1762 book by Jean-Jacques Rousseau that discussed this concept. Although the antecedents of social contract theory are found in antiquity, in Greek and Stoic philosophy and Roman and Canon Law, the heyday of the social contract was the mid-17th to early 19th centuries, when it emerged as the leading doctrine of political legitimacy.