Ethics or moral philosophy is the philosophical study of moral phenomena. It investigates normative questions about what people ought to do or which behavior is morally right. It is usually divided into three major fields: normative ethics, applied ethics, and metaethics.
Veganism is the practice of abstaining from the use of animal products—particularly in diet—and an associated philosophy that rejects the commodity status of animals. A person who follows the diet or philosophy is known as a vegan.
Vegetarianism is the practice of abstaining from the consumption of meat. It may also include abstaining from eating all by-products of animal slaughter.
Eudaimonia, sometimes anglicized as eudaemonia or eudemonia, is a Greek word literally translating to the state or condition of 'good spirit', and which is commonly translated as 'happiness' or 'welfare'.
Tom Regan was an American philosopher who specialized in animal rights theory. He was professor emeritus of philosophy at North Carolina State University, where he had taught from 1967 until his retirement in 2001.
Summum bonum is a Latin expression meaning the highest or ultimate good, which was introduced by the Roman philosopher Cicero to denote the fundamental principle on which some system of ethics is based — that is, the aim of actions, which, if consistently pursued, will lead to the best possible life. Since Cicero, the expression has acquired a secondary meaning as the essence or ultimate metaphysical principle of Goodness itself, or what Plato called the Form of the Good. These two meanings do not necessarily coincide. For example, Epicurean and Cyrenaic philosophers claimed that the 'good life' consistently aimed for pleasure, without suggesting that pleasure constituted the meaning or essence of Goodness outside the ethical sphere. In De finibus, Cicero explains and compares the ethical systems of several schools of Greek philosophy, including Stoicism, Epicureanism, Aristotelianism and Platonism, based on how each defines the ethical summum bonum differently.
Christian vegetarianism is the practice of keeping to a vegetarian lifestyle for reasons connected to or derived from the Christian faith. The three primary reasons are spiritual, nutritional, and ethical. The ethical reasons may include a concern for God's creation, a concern for animal rights and welfare, or both. Likewise, Christian veganism is not using any animal products for reasons connected to or derived from the Christian faith.
Conversations regarding the ethics of eating meat are focused on whether or not it is moral to eat non-human animals. Ultimately, this is a debate that has been ongoing for millennia, and it remains one of the most prominent topics in food ethics.
James Webster Rachels was an American philosopher who specialized in ethics and animal rights.
Kantian ethics refers to a deontological ethical theory developed by German philosopher Immanuel Kant that is based on the notion that "I ought never to act except in such a way that I could also will that my maxim should become a universal law.” It is also associated with the idea that “[i]t is impossible to think of anything at all in the world, or indeed even beyond it, that could be considered good without limitation except a good will." The theory was developed in the context of Enlightenment rationalism. It states that an action can only be moral if it is motivated by a sense of duty, and its maxim may be rationally willed a universal, objective law.
The earliest records of vegetarianism as a concept and practice amongst a significant number of people are from ancient India, especially among the Hindus and Jains. Later records indicate that small groups within the ancient Greek civilizations in southern Italy and Greece also adopted some dietary habits similar to vegetarianism. In both instances, the diet was closely connected with the idea of nonviolence toward animals, and was promoted by religious groups and philosophers.
Jan Deckers works in bioethics at Newcastle University. His work revolves mainly around three topics: animal ethics, reproductive ethics and embryo research, and ethics of genetics.
Nick Zangwill is a British philosopher and honorary research professor at University College London and Lincoln University. He is known for his expertise on moral philosophy, and aesthetics.
Vegan studies or vegan theory is the study of veganism, within the humanities and social sciences, as an identity and ideology, and the exploration of its depiction in literature, the arts, popular culture, and the media. In a narrower use of the term, vegan studies seek to establish veganism as a "mode of thinking and writing" and a "means of critique".
Jeffrey Raymond Sebo is an American philosopher. He is clinical associate professor of environmental studies, director of the animal studies MA program, and affiliated professor of bioethics, medical ethics, and philosophy at New York University. In 2022, he published his first sole-authored book, Saving Animals, Saving Ourselves.
Thomas Lepeltier is a French independent scholar, essayist and science writer specializing in the history and philosophy of science and applied ethics, known in particular for his contributions to the field of animal law. He is the author of several philosophical works on animal ethics such as L'imposture intellectuelle des carnivores and of science history books including Darwin hérétique and Univers parallèles. Known initially as a science historian, he now mainly advocates in defense of animals in the French media.
The ethics of uncertain sentience refers to questions surrounding the treatment of and moral obligations towards individuals whose sentience—the capacity to subjectively sense and feel—and resulting ability to experience pain is uncertain; the topic has been particularly discussed within the field of animal ethics, with the precautionary principle frequently invoked in response.
Andy Lamey is a Canadian philosopher and journalist. He is a teaching professor at the University of California, San Diego. He is the author of Frontier Justice: The Global Refugee Crisis and What To Do About ItDuty and the Beast: Should We Eat Meat in the Name of Animal Rights? and The Canadian Mind: Essays on Writers and Thinkers.
Robert William Fischer is an American philosopher who specializes in epistemology and ethics. He is an Associate Professor in Philosophy at Texas State University, a Senior Research Manager at Rethink Priorities, and the Director of the Society for the Study of Ethics and Animals. His books include Modal Justification via Theories, in which he defends his account of "Theory-Based Epistemology of Modality", and The Ethics of Eating Animals, in which he argues that animal agriculture is frequently morally impermissible, but that veganism is nonetheless not morally required.
On Abstinence from Eating Animals is a 3rd-century treatise by Porphyry on the ethics of vegetarianism. The four-book treatise was composed by the philosopher as an open letter to Castricius Firmus, a fellow pupil of Plotinus who had renounced a vegetarian diet.
