The evil d[a]emon, sometimes referred to as the evil genius, is a concept in Cartesian philosophy. Philosophy is the study of general problems concerning matters such as existence knowledge truth beauty justice validity mind and language In his Meditations on First Philosophy, René Descartes hypothesizes the existence of an evil demon, a personification who is "as clever and deceitful as he is powerful, who has directed his entire effort to misleading me. Meditations on First Philosophy (subtitled In which the existence of God and the immortality of the soul are demonstrated) is a philosophical treatise written " The evil demon presents a complete illusion of an external world, including other people, to Descartes' senses, where in fact there is no such external world in existence. The evil genius also presents to Descartes' senses a complete illusion of his own body, including all bodily sensations, where in fact Descartes has no body. Most Cartesian scholars opine that the evil demon is also omnipotent, and thus capable of altering mathematics and the fundamentals of logic. Omnipotence ( Omni Potens: "all Power " is unlimited power ^[1][2]

Contents 1 General discussion 2 See also 3 References 4 Further reading

General discussion

The evil demon has a parallel with Bishop Berkeley's concept of a consensus reality supported by God. George Berkeley (ˈbɑrkli (12 March 1685 14 January 1753 also known as Bishop Berkeley, was a Philosopher. Consensus reality (rarely or mistakenly called "consensual reality" is an approach to answering the question 'What is real ?' a profound philosophical question God is the principal or sole Deity in Religions and other belief systems that worship one deity. It is one of several methods of systematic doubt that Descartes employs in the Meditations. Methodic doubt (" Hyperbolic doubt " is a systematic process of being skeptical about (or doubting the truth of one's beliefs which has become a characteristic method ^[1]

Another such method of systematic doubt is the deus deceptor (French dieu trompeur), the deceptive God. DeuS (Brut Des Flandres is a premium Belgian beer manufactured in Buggenhout, Belgium. God is the principal or sole Deity in Religions and other belief systems that worship one deity. Cartesian scholars differ in their opinions as to whether the deus deceptor and the evil demon are one and the same. Among the accusations of blasphemy made against Descartes by Protestants was that he was positing an omnipotent God of malevolent intent. Blasphemy is the disrespectful use of the name of one or more gods. Protestantism refers to the forms of Christian faith and practice that originated in the 16th century Protestant Reformation. Misotheism is the "hatred of God " or "hatred of the Gods " (from the Greek adjective μισόθεος "hating the gods" a compound of

Kennington^[3][4] states that the evil demon is never declared by Descartes to be omnipotent, merely to be not less powerful than he is necessarily deceitful, and thus not explicitly an equivalent to an omnipotent God. The evil demon is capable of simulating an external world and bodily sensations, but incapable of rendering dubious things that are independent of trust in the senses, such as pure mathematics, eternal truths, and the principle of contradiction. Broadly speaking pure mathematics is Mathematics motivated entirely for reasons other than application In Logic, the Principle of contradiction ( principium contradictionis in Latin) is the second of the so-called Three classic laws of thought.

However, this was not the view of Descartes' contemporaries. Voetius accused Descartes of blasphemy in 1643. Gisbertus Voetius (latinized version of the dutch name Gijsbert Voet) ( March 3, 1589 — November 1, 1676) was a Dutch Jacques Triglandius and Jacobus Revius, theologians at Leiden University, made similar accusations in 1647, accusing Descartes of "hold[ing] God to be a deceiver", a position that they stated to be "contrary to the glory of God". Leiden University (Universiteit Leiden located in the city of Leiden, is the oldest University in The Netherlands. Descartes was threatened with having his views condemned by a synod, but this was prevented by the intercession of the Prince of Orange (at the request of the French Ambassador Servien). A synod (also known as a council) is a council of a church, usually a Christian church convened to decide an issue of doctrine administration or application Prince of Orange is a Title of Nobility, originally associated with the Principality of Orange, now in southern France. ^[2]

The accusations referenced a passage in the First Meditation where Descartes stated that he supposed not an optimal God but rather an evil demon "summe potens & callidus" (translated as "most highly powerful and cunning"). The accusers identified Descartes' concept of a deus deceptor with his concept of an evil demon, stating that only an omnipotent God is "summe potens" and that describing the evil demon as such thus demonstrated the identity. Descartes' response to the accusations was that in that passage he had been expressly distinguishing between "the supremely good God, the source of truth, on the one hand, and the malicious demon on the other". He did not directly rebut the charge of implying that the evil demon was omnipotent, but asserted that simply describing something with "some attribute that in reality belongs only to God" does not mean that that something is being held to actually be a supreme God. ^[2]

That the evil demon is omnipotent, Christian doctrine notwithstanding, is seen as a key requirement for Descartes' argument by Cartesian scholars such as Alguié, Beck, Émile Bréhier, Chevalier, Frankfurt, Étienne Gilson, Anthony Kenny, Laporte, Kemp-Smith, and Wilson. Émile Bréhier (1876-1952 was a French philosopher His interest was in classical philosophy and the history of philosophy Étienne Gilson (b Paris June 13, 1884 - September 19, 1978) was a French Thomistic Philosopher and Historian Sir Anthony John Patrick Kenny FBA (born 16 March 1931 in Liverpool) is an English Philosopher whose interests lie The progression through the First Meditation, leading to the introduction of the concept of the evil genius at the end, is to introduce various categories into the set of dubitables, such as mathematics (i. e. Descartes' addition of 2 and 3 and counting the sides of a square). Although the hypothetical evil genius is never stated to be one and the same as the hypothetical deus deceptor, the inference by the reader that they are is a natural one, and the requirement that the deceiver is capable of introducing deception even into mathematics is seen by commentators as a necessary part of Descartes' argument. Kenney exemplifies Cartesian scholarship on this point, stating that the reason that Descartes introduces a second hypothetical, beyond the original hypothetical of the deus deceptor, is that it is simply "less offensive. The content of the two hypotheses is the same, namely that an omnipotent deceiver is trying to deceive. " Scholars contend that in fact Descartes was not introducing a new hypothetical, merely couching the idea of a deceptive God in terms that would not be offensive. ^[2]

Janowski points out one reason for not accepting this interpretation, the same as given by Kennington, namely that the set of things that the evil demon is stated as rendering dubious ("the heavens, the air, the earth, colours, figures, sounds, and all external things") is only a subset of the things that the deus deceptor is stated as rendering dubious (earth, heavens, extended things, figure, magnitude, place, and mathematics). The omission of mathematics implies either that the evil demon is not omnipotent or that Descartes retracted Universal Doubt. Janowski notes that in The Principles of Philosophy (I, 15) Descartes states that Universal Doubt applies even to "the demonstration of mathematics", and so concludes that either Descartes' Meditation is flawed, lacking a reason for doubting mathematics, or that the charges of blasphemy were well placed, and Descartes was supposing an omnipotent evil demon. Principles of Philosophy ( Principia philosophiae) was written in Latin by René Descartes. ^[2]

W. Teed Rockwell, claiming to be a Deweyan pragmatist, argues that instead of being dualists or Cartesians, "philosophers should realize that the human conscious self is not reducible to the brain, nor to the nervous system, noreven to the human body. John Dewey (October 20 1859 &ndash June 1 1952 was an American Philosopher, Psychologist, and educational reformer, whose thoughts and ideas have The thinking, conscious self is a nexus--or a "behavioral field"--of the brain, the nervous system, the body, and the world. "^[5] Rockwell contends that his position "can allow for solutions to certain philosophical problems such as the 'brain in the vat,' . . . a contemporary, materialist version of the problem introduced by Descartes's 'Evil Genius'". ^[5] "Both thought experiments are supposed to show us that human consciousness is plausible even though there might be no world in which consciousness exists," but Rockwell argues "that even in a vat the brain would have to be stimulated by some world, if only a world of electronic gizmos, and that such a world would have to produce a continuous experience. The brain, hence, would have to be embodied in some way. "^[5]

See also

• Brain in a vat
• Dream argument
• Internalism and externalism
• Neurally controlled animat
• Simulated reality
• Skeptical hypothesis
• Solipsism
• Satan

References

Further reading

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