Plotinus was a Greek Platonist philosopher, born and raised in Roman Egypt. Plotinus is regarded by modern scholarship as the founder of Neoplatonism. His teacher was the self-taught philosopher Ammonius Saccas, who belonged to the Platonic tradition. Historians of the 19th century invented the term "neoplatonism" and applied it to refer to Plotinus and his philosophy, which was vastly influential during late antiquity, the Middle Ages, and the Renaissance. Much of the biographical information about Plotinus comes from Porphyry's preface to his edition of Plotinus' most notable literary work, The Enneads. In his metaphysical writings, Plotinus described three fundamental principles: the One, the Intellect, and the Soul. His works have inspired centuries of pagan, Jewish, Christian, Gnostic, and early Islamic metaphysicians and mystics, including developing precepts that influence mainstream theological concepts within religions, such as his work on duality of the One in two metaphysical states.
Richard Mervyn Hare, usually cited as R. M. Hare, was a British moral philosopher who held the post of White's Professor of Moral Philosophy at the University of Oxford from 1966 until 1983. He subsequently taught for a number of years at the University of Florida. His meta-ethical theories were influential during the second half of the twentieth century.
The Enneads, fully The Six Enneads, is the collection of writings of the philosopher Plotinus, edited and compiled by his student Porphyry. Plotinus was a student of Ammonius Saccas, and together they were founders of Neoplatonism. His work, through Augustine of Hippo, the Cappadocian Fathers, Pseudo-Dionysius the Areopagite and several subsequent Christian and Muslim thinkers, has greatly influenced Western and Near-Eastern thought.
Alasdair Chalmers MacIntyre is a Scottish-American philosopher who has contributed to moral and political philosophy as well as history of philosophy and theology. MacIntyre's After Virtue (1981) is one of the most important works of Anglophone moral and political philosophy in the 20th century. He is senior research fellow at the Centre for Contemporary Aristotelian Studies in Ethics and Politics (CASEP) at London Metropolitan University, emeritus Professor of Philosophy at the University of Notre Dame, and permanent senior distinguished research fellow at the Notre Dame Center for Ethics and Culture. During his lengthy academic career, he also taught at Brandeis University, Duke University, Vanderbilt University, and Boston University.
Michael A. Slote is a professor of ethics at the University of Miami and an author of a number of books.
Porphyry of Tyre was a Neoplatonic philosopher born in Tyre, Roman Phoenicia during Roman rule. He edited and published The Enneads, the only collection of the work of Plotinus, his teacher.
Mary Beatrice Midgley was a British philosopher. A senior lecturer in philosophy at Newcastle University, she was known for her work on science, ethics and animal rights. She wrote her first book, Beast and Man (1978), when she was in her late fifties, and went on to write over 15 more, including Animals and Why They Matter (1983), Wickedness (1984), The Ethical Primate (1994), Evolution as a Religion (1985), and Science as Salvation (1992). She was awarded honorary doctorates by Durham and Newcastle universities. Her autobiography, The Owl of Minerva, was published in 2005.
Sir William David Ross, known as David Ross but usually cited as W. D. Ross, was a Scottish Aristotelian philosopher, translator, WWI veteran, civil servant, and university administrator. His best-known work is The Right and the Good (1930), in which he developed a pluralist, deontological form of intuitionist ethics in response to G. E. Moore's consequentialist form of intuitionism. Ross also critically edited and translated a number of Aristotle's works, such as his 12-volume translation of Aristotle together with John Alexander Smith, and wrote on other Greek philosophy.
Robert Merrihew Adams is an American analytic philosopher, specializing in metaphysics, philosophy of religion, ethics, and the history of early modern philosophy.
Daniel A. Dombrowski is an American philosopher and professor emeritus of philosophy at Seattle University. Since 2009 he has served as Editor of the journal Process Studies, and is a past president of the Metaphysical Society of America (2018–19).
James Webster Rachels was an American philosopher who specialized in ethics and animal rights.
John Niemeyer Findlay, usually cited as J. N. Findlay, was a South African philosopher.
Mylan Engel Jr. is a full professor of philosophy at Northern Illinois University in DeKalb.
Neoplatonism is a version of Platonic philosophy that emerged in the 3rd century AD against the background of Hellenistic philosophy and religion. The term does not encapsulate a set of ideas as much as a series of thinkers. Among the common ideas it maintains is monism, the doctrine that all of reality can be derived from a single principle, "the One".
Roger Stephen Crisp is fellow and tutor in philosophy at St. Anne's College, Oxford. He holds the university posts of Professor of Moral Philosophy and Uehiro Fellow and Tutor in Philosophy. His work falls principally within the field of ethics, in particular metaethics, normative ethics, and applied ethics. In addition, he is chairman of the Management Committee of the Oxford Uehiro Centre for Practical Ethics.
David DeGrazia is an American moral philosopher specializing in bioethics and animal ethics. He is Professor of Philosophy at George Washington University, where he has taught since 1989, and the author or editor of several books on ethics, including Taking Animals Seriously: Mental Life and Moral Status (1996), Human Identity and Bioethics (2005), and Creation Ethics: Reproduction, Genetics, and Quality of Life (2012).
The Oxford Group or Oxford Vegetarians consisted of a group of intellectuals in England in the late 1960s and early 1970s associated with the University of Oxford, who met and corresponded to discuss the emerging concept of animal rights, or animal liberation.
Tzachi Zamir is an Israeli philosopher and literary critic specialising in the philosophy of literature, the philosophy of theatre, and animal ethics. He is Professor of English and General & Comparative Literature at the Hebrew University of Jerusalem.
Charles Russell Magel was an American philosopher, animal rights activist and bibliographer. He was professor emeritus of Philosophy and Ethics at Moorhead State University.
