Siger of Brabant

Siger of Brabant
Siger of Brabant

Of Siger’s life, we know very few facts for certain. His exact place of birth remains unknown, as well as the locale and circumstances of his death. (Did he die peacefully in Liege, Belgium, or was he assassinated in Italy at the Roman curia?) Even the chronology of his works is uncertain. Although they are thought to have been written between 1265 and 1277, the precise dates remain conjectural.

Concerning his university career, facts are again unclear. Although it is certain that he never left the faculty of arts for one of the higher faculties (theology, medicine, law), his role in the debates that shook the University of Paris and led to the statutes of 1272 remains the subject of discussion (Putallaz and Imbach 1997 versus Bianchi 1999). At the beginning of his career, he was one of Thomas Aquinas’s most outspoken adversaries, but the question as to what degree he would have abandoned Averroism to adopt Thomist views remains open.

Certain passages seem to support the view that he would have abandoned Averroism, while others are incompatible with this hypothesis (Van Steenberghen and Maurer defend the developmental interpretation, whereas Mandonnet and Bukowski defend the idea that Siger never changed his mind and was the strictest Averroist of his time, a philosopher who could without any guilt subscribe to heretical propositions).

Georg Simmel

Georg Simmel
Georg Simmel

Georg Simmel, the German philosopher and sociologist, was born in Berlin and resided there except for the last four years of his life. He was educated there, and in 1881 he received his doctorate from the University of Berlin.

Three years later he began to teach at that university as a Privatdozent and from 1900 he was associate professor without faculty status. Although successful as a lecturer and a writer, he was never promoted to a full professorship at Berlin, nor was he able to secure such a position at any other leading German university.

Only in 1914, when his career was almost ended, was he offered a chair in philosophy at the provincial University of Strasbourg. However, World War I disrupted university life there, so that Strasbourg benefited little from Simmel’s teaching. Just before the end of the war, Simmel died of cancer.

Simplicius

Simplicius
Simplicius

Simplicius of Cilicia (in Asia Minor) tells us that he studied Platonic philosophy in Alexandria under Ammonius the son of Hermias (fl. c. 550). Afterward, he attended the lectures of Damascius, probably in Athens at the original and still flourishing school founded by Plato himself, the Academy. (An earlier scholarly opinion that there were doctrinal differences between the teachings on Plato in Alexandria and Athens is no longer held.)

All these figures were active neoplatonists, and Hermias and Damascius did in fact publish commentaries on various dialogues of Plato. But Ammonius and Simplicius (and to a lesser extent Damascius as well) devoted most of their writings to the explication of Aristotle’s works.

Simplicius, in addition to a commentary on Epictetus’s Handbook (Enchiridion), wrote extensive commentaries on five of those works of Aristotle that most challenge philosophers: Metaphysics (no longer extant, although fragments are known), Physics, Categories, De Anima, and De Caelo, with the four extant commentaries totaling over 2,800 sizable pages in the series Commentaria in Aristotelem Graeca. (References in some modern books to a commentary by Simplicius on Sophistici Elenchi are mistaken.)

John Smith

John Smith
John Smith

John Smith, the moral and religious philosopher of the Cambridge Platonist school, was born at Achurch, near Oundle, in Northamptonshire. Very little is known with certainty about his origins.

It would seem that his father was a locally respected small farmer, that both of his parents were elderly when he was born, that he lost his mother in his early childhood and his father soon after. His short life was a continual struggle against poverty and ill health. In 1636 he was somehow enabled to enter Emmanuel College, where he came under the influence of Benjamin Whichcote.

Although he was about the same age as his fellow Platonist Ralph Cudworth, Cudworth was already a fellow of Emmanuel before Smith took his BA in 1640; Smith was very likely his pupil and certainly came under his influence. The influence may have been in some measure reciprocal.

John Jamieson Carswell Smart

John Jamieson Carswell Smart - 永井里菜 Rina Nagai
John Jamieson Carswell Smart

John Jamieson Carswell Smart was born into an academic Scottish family on September 16, 1920. His father, W. M. Smart, was an astronomer in Cambridge until 1937 when the family moved to Glasgow. J. J. C. Smart entered the University of Glasgow in 1938.

War service interrupted Smart’s education from 1940 to 1945, after which he rapidly completed his degrees at Glasgow, then proceeded to the University of Oxford, where he read for the newly established BPhil degree and came under the influence of Gilbert Ryle. After a short period at Corpus Christi College, he accepted, at the age of twenty-nine, the Hughes Professorship of Philosophy at the University of Adelaide.

John Jamieson Carswell Smart spent twenty-two years at the University of Adelaide, moving to La Trobe University in Melbourne in 1972. In 1976 he was appointed to a Chair in the Research School of Social Sciences of the Australian National University, which he held until his retirement in 1985. Since then he has continued to be active in philosophy at the Australian National University and in Melbourne.

Social and Political Philosophy

Social and Political Philosophy
Social and Political Philosophy

It is generally agreed that the central task of social and political philosophy is to provide a justification for coercive institutions. Coercive institutions range in size from the family to the nation-state and world organizations, like the United Nations, with their narrower and broader agendas for action. Yet essentially, they are institutions that at least sometimes employ force or the threat of force to control the behavior of their members to achieve either minimal or wide-ranging goals.

To justify such coercive institutions, we need to show that the authorities within these institutions have a right to be obeyed and that their members have a corresponding duty to obey them. In other words, we need to show that these institutions have legitimate authority over their members.

In philosophical debate at the beginning of the twenty-first century, a number of competing justifications for coercive institutions have been defended:

Peter Singer

Peter Singer
Peter Singer

Peter Singer is one of the most influential philosophers of the twentieth century. While other philosophers have been more important in the development of the discipline, none has changed more lives. Newsweek magazine observed that the modern animal rights movement may be dated from the publication of Animal Liberation.

This book has sold more than 500,000 copies in sixteen languages thus far. Altogether Peter Singer is responsible in whole or part for producing thirty-six books, and a vast number of articles and reviews in journals ranging from The Philosophical Review to the New York Times.

Peter Singer was born in Melbourne, Australia, on July 6th, 1946. His parents were Viennese Jews who escaped in 1938, shortly after the Anschluss incorporated Austria into the German Reich. He went on to Melbourne University, where as an undergraduate he studied law, history, and philosophy.

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