Moral sense theoryMoral sense theory (also known as moral sentimentalism) is a theory in moral epistemology and meta-ethics concerning the discovery of moral truths. Moral sense theory typically holds that distinctions between morality and immorality are discovered by emotional responses to experience. Some take it to be primarily a view about the nature of moral facts or moral beliefs (a primarily metaphysical view)—this form of the view more often goes by the name "sentimentalism".
Descriptive ethicsDescriptive ethics, also known as comparative ethics, is the study of people's beliefs about morality. It contrasts with prescriptive or normative ethics, which is the study of ethical theories that prescribe how people ought to act, and with meta-ethics, which is the study of what ethical terms and theories actually refer to.
Voluntarism (philosophy)Voluntarism is "any metaphysical or psychological system that assigns to the will (Latin: voluntas) a more predominant role than that attributed to the intellect", or equivalently "the doctrine that will is the basic factor, both in the universe and in human conduct". Voluntarism has appeared at various points throughout the history of philosophy, seeing application in the areas of metaphysics, psychology, political philosophy and theology.
Value pluralismIn ethics, value pluralism (also known as ethical pluralism or moral pluralism) is the idea that there are several values which may be equally correct and fundamental, and yet in conflict with each other. In addition, value-pluralism postulates that in many cases, such incompatible values may be incommensurable, in the sense that there is no objective ordering of them in terms of importance. Value pluralism is opposed to value monism. Value-pluralism is a theory in metaethics, rather than a theory of normative ethics, or a set of values in itself.
Truthmaker theoryTruthmaker theory is "the branch of metaphysics that explores the relationships between what is true and what exists". The basic intuition behind truthmaker theory is that truth depends on being. For example, a perceptual experience of a green tree may be said to be true because there actually is a green tree. But if there was no tree there, it would be false. So the experience by itself does not ensure its truth or falsehood, it depends on something else.
Truth-bearerA truth-bearer is an entity that is said to be either true or false and nothing else. The thesis that some things are true while others are false has led to different theories about the nature of these entities. Since there is divergence of opinion on the matter, the term truth-bearer is used to be neutral among the various theories.
SubjectivismSubjectivism is the doctrine that "our own mental activity is the only unquestionable fact of our experience", instead of shared or communal, and that there is no external or objective truth. While Thomas Hobbes was an early proponent of subjectivism, the success of this position is historically attributed to Descartes and his methodic doubt. He used it as an epistemological tool to prove the opposite (an objective world of facts independent of one's own knowledge, ergo the "Father of Modern Philosophy" inasmuch as his views underlie a scientific worldview).
Effective altruismEffective altruism is a philosophical and social movement that advocates "using evidence and reason to figure out how to benefit others as much as possible, and taking action on that basis". People who pursue the goals of effective altruism, called , often choose careers based on the amount of good that they expect the career to achieve or donate to charities based on the goal of maximising impact. The movement developed during the 2000s, and the name was coined in 2011.
Science of moralityThe science of morality may refer to various forms of ethical naturalism grounding morality in rational, empirical consideration of the natural world. It is sometimes framed as using the scientific approach to determine what is right and wrong, in contrast to the widespread belief that "science has nothing to say on the subject of human values". Moral science may refer to the consideration of what is best for, and how to maximize the flourishing of, either particular individuals or all conscious creatures.