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Evil Demon
The evil demon, also known as Descartes' demon, malicious demon and evil genius, is an epistemological concept that features prominently in Cartesian philosophy. In the first of his 1641 ''Meditations on First Philosophy'', Descartes imagines that an evil demon, of "utmost power and cunning has employed all his energies in order to deceive me." This evil demon is imagined to present a complete illusion of an external world, so that Descartes can say, "I shall think that the sky, the air, the earth, colours, shapes, sounds and all external things are merely the delusions of dreams which he has devised to ensnare my judgement. I shall consider myself as not having hands or eyes, or flesh, or blood or senses, but as falsely believing that I have all these things." Some Cartesian scholars opine that the demon is also omnipotent, and thus capable of altering mathematics and the fundamentals of logic, though omnipotence of the evil demon would be contrary to Descartes' hypothesis, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epistemology
Epistemology (; ), or the theory of knowledge, is the branch of philosophy concerned with knowledge. Epistemology is considered a major subfield of philosophy, along with other major subfields such as ethics, logic, and metaphysics. Epistemologists study the nature, origin, and scope of knowledge, epistemic justification, the rationality of belief, and various related issues. Debates in epistemology are generally clustered around four core areas: # The philosophical analysis of the nature of knowledge and the conditions required for a belief to constitute knowledge, such as truth and justification # Potential sources of knowledge and justified belief, such as perception, reason, memory, and testimony # The structure of a body of knowledge or justified belief, including whether all justified beliefs must be derived from justified foundational beliefs or whether justification requires only a coherent set of beliefs # Philosophical skepticism, which questions the possibili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abel Servien
Abel Servien, marquis de Sablé et de Boisdauphin and comte de La Roche des Aubiers (1 November 159317 February 1659) was a French diplomat who served Cardinal Mazarin and signed for the French the Treaty of Westphalia. He was an early member of the ''noblesse de robe'' in the service of the French state. Biography Abel Servien was born at the château of Biviers, near Grenoble, the son of Antoine Servien, procurator-general of the estates of Dauphiné. He succeeded his father in that office in 1616, and in the following year attended the assembly of notables at Rouen convoked by the young Louis XIII. In 1618 he was named councillor of state and in March 1624 was called to Paris, where he found favor with Cardinal Richelieu. He displayed administrative ability and great loyalty to the central government as intendant in Guienne in 1627, where his executive qualities came to the fore, and where it became clear that he had broken with his background in the ''parlements'' to become ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dream Argument
The dream argument is the postulation that the act of dreaming provides preliminary evidence that the senses we trust to distinguish reality from illusion should not be fully trusted, and therefore, any state that is dependent on our senses should at the very least be carefully examined and rigorously tested to determine whether it is in fact reality. Synopsis While dreaming, one does not normally realize one is dreaming. On more rare occasions, the dream may be contained inside another dream with the very act of realizing that one is dreaming, itself, being only a dream that one is not aware of having. This has led philosophers to wonder whether it is possible for one ever to be certain, at any given point in time, that one is not in fact dreaming, or whether indeed it could be possible for one to remain in a perpetual dream state and never experience the reality of wakefulness at all. In Western philosophy this philosophical puzzle was referred to by Plato ( ''Theaetetus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demiurge
In the Platonic, Neopythagorean, Middle Platonic, and Neoplatonic schools of philosophy, the demiurge () is an artisan-like figure responsible for fashioning and maintaining the physical universe. The Gnostics adopted the term ''demiurge''. Although a fashioner, the demiurge is not necessarily the same as the Creator figure in the monotheistic sense, because the demiurge itself and the material from which the demiurge fashions the universe are both considered consequences of something else. Depending on the system, they may be considered either uncreated and eternal or the product of some other entity. The word ''demiurge'' is an English word derived from ''demiurgus'', a Latinised form of the Greek or . It was originally a common noun meaning "craftsman" or "artisan", but gradually came to mean "producer", and eventually "creator". The philosophical usage and the proper noun derive from Plato's ''Timaeus'', written 360 BC, where the demiurge is presented as the crea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cogito Ergo Sum
The Latin , usually translated into English as "I think, therefore I am", is the "first principle" of René Descartes's philosophy. He originally published it in French as , in his 1637 ''Discourse on the Method'', so as to reach a wider audience than Latin would have allowed. It later appeared in Latin in his ''Principles of Philosophy'', and a similar phrase also featured prominently in his ''Meditations on First Philosophy''. The dictum is also sometimes referred to as the cogito. As Descartes explained in a margin note, "we cannot doubt of our existence while we doubt." In the posthumously published ''The Search for Truth by Natural Light'', he expressed this insight as ("I doubt, therefore I am — or what is the same — I think, therefore I am").. Antoine Léonard Thomas, in a 1765 essay in honor of Descartes presented it as ("I doubt, therefore I think, therefore I am"). Descartes's statement became a fundamental element of Western philosophy, as it purported to pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boltzmann Brain
The Boltzmann brain thought experiment suggests that it might be more likely for a single brain to spontaneously form in a void (complete with a memory of having existed in our universe) rather than for the entire universe to come about in the manner cosmologists think it actually did. Physicists use the Boltzmann brain thought experiment as a ''reductio ad absurdum'' argument for evaluating competing scientific theories. In contrast to brain in a vat thought experiments which are about perception and thought, Boltzmann brains are used in cosmology to test our assumptions about thermodynamics and the development of the universe. Over a sufficiently long time, random fluctuations could cause particles to spontaneously form literally any structure of any degree of complexity, including a functioning human brain. In this thought experiment, a Boltzmann brain is a fully formed brain, complete with memories of a full human life, that arises out of thermodynamic equilibrium. The scenari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allegory Of The Cave
The Allegory of the Cave, or Plato's Cave, is an allegory presented by the Ancient Greece, Greek philosopher Plato in his work ''Republic (Plato), Republic'' (514a–520a) to compare "the effect of education (Wiktionary:παιδεία, παιδεία) and the lack of it on our physis, nature". It is written as a dialogue between Plato's brother Glaucon and his mentor Socrates, narrated by the latter. The allegory is presented after the analogy of the sun (508b–509c) and the analogy of the divided line (509d–511e). In the allegory "The Cave," Plato describes a group of people who have lived chained to the wall of a cave all their lives, facing a blank wall. The people watch shadows projected on the wall from objects passing in front of a fire behind them and give names to these shadows. The shadows are the prisoners' reality, but are not accurate representations of the real world. The shadows represent the fragment of reality that we can normally perceive through our senses, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Principles Of Philosophy
''Principles of Philosophy'' ( la, Principia Philosophiae) is a book by René Descartes. In essence, it is a synthesis of the ''Discourse on Method'' and ''Meditations on First Philosophy''.Guy Durandin, ''Les Principes de la Philosophie. Introduction et notes'', Librairie Philosophique J. Vrin, Paris, 1970. It was written in Latin, published in 1644 and dedicated to Elisabeth of the Palatinate, Elisabeth of Bohemia, with whom Descartes had a long-standing friendship. A French version (''Les Principes de la Philosophie'') followed in 1647. The book sets forth the principles of nature—the Laws of Physics—as Descartes viewed them. Most notably, it set forth the principle that in the absence of external forces, an object's motion will be uniform and in a straight line. Isaac Newton, Newton borrowed this principle from Descartes and included it in his own ''Philosophiae Naturalis Principia Mathematica, Principia''; to this day, it is still generally referred to as Newton's First ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthony Kenny
Sir Anthony John Patrick Kenny (born 16 March 1931) is a British philosopher whose interests lie in the philosophy of mind, ancient and scholastic philosophy, the philosophy of religion, and the philosophy of Wittgenstein of whose literary estate he is an executor. With Peter Geach, he has made a significant contribution to analytical Thomism, a movement whose aim is to present the thought of St. Thomas Aquinas in the style of analytic philosophy. He is a former president of the British Academy and the Royal Institute of Philosophy. Education and early career Kenny initially trained as a Roman Catholic priest at the Venerable English College, Rome, where he received a degree of Licentiate of Sacred Theology (STL) degree. He was ordained in 1955 and served as a curate in Liverpool (1959–63). Having received his DPhil from the University of Oxford ( St Benet's Hall) in 1961, he also worked as an assistant lecturer at the University of Liverpool (1961–63). However, he question ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Étienne Gilson
Étienne Henri Gilson (; 13 June 1884 – 19 September 1978) was a French philosopher and historian of philosophy. A scholar of medieval philosophy, he originally specialised in the thought of Descartes; he also philosophized in the tradition of Thomas Aquinas, although he did not consider himself a Neo-Thomist philosopher. In 1946 he attained the distinction of being elected an "Immortal" (member) of the Académie française. He was nominated for the Nobel Prize in Literature. Biography Born in Paris into a Roman Catholic family originally from Burgundy, Gilson attended the minor seminary at Notre-Dame-des-Champs, then finished his secondary education at the Lycée Henri IV. After finishing his military service, during which he began to read René Descartes, he studied for his '' licence'' (bachelor's degree), focusing on the influence of scholasticism on Cartesian thought. After studying at the Sorbonne under Victor Delbos (1862–1916), and Lucien Lévy-Bruhl and at the Collà ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Émile Bréhier
Émile Bréhier (; 12 April 1876, Bar-le-Duc – 3 February 1952, Paris) was a French philosopher. His interest was in classical philosophy, and the history of philosophy. He wrote a ''Histoire de la Philosophie'', translated into English in seven volumes. Life Bréhier studied at the University of Paris. In 1908 he received his doctorate at the Sorbonne with a dissertation about Philo of Alexandria. From 1910 to 1912 he was Master of Philosophical Conferences at the University of Rennes, and professor of philosophy at the University of Bordeaux from 1912 to 1914. He was Henri Bergson's successor at the University of Paris in 1945. The historian Louis Bréhier was his brother. In 1914 Bréhier became a sub-lieutenant in the 344th Infantry Regiment; he was made knight of the '' Légion d'honneur''. Philosophical work He was an early follower of Bergson; in the 1930s there was an influential view that Bergsonism and Neoplatonism were linked. He has been called "the sole figure i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand Alquié
Ferdinand Alquié (; 18 December 1906, Carcassonne, Aude – 28 February 1985, Montpellier) was a French philosopher and member of the Académie des Sciences Morales et Politiques from 1978. In the years 1931 to 1945 he was a professor in various provincial and Parisian lycees, and later at the University of Montpellier and Sorbonne where he worked until he retired in 1979. Career Alquié's career was dominated by the decades-long polemic between himself as a Cartesian and the Spinozian perspective of his rival Martial Gueroult. He was vehemently opposed to all forms of philosophical monism and felt that human life is permeated by various forms of dualism. He was opposed to totalitarianism as well as to Marxism; as a close friend of André Breton, he aligned himself with the surrealist project. He was an instructor of Gilles Deleuze, whom, according to Michael Hardt, he accused of drawing on biology, psychology, and other fields, neglecting philosophy. Deleuze responded b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
