George berkeley biography summary graphic organizer

George Berkeley

Anglo-Irish philosopher and bishop (1685–1753)

For other people named George City, see George Berkeley (disambiguation).

The Right Reverend


George Berkeley

Portrait attain Berkeley by John Smybert, 1727

ChurchChurch of Ireland
DioceseCloyne
In office1734–1753
PredecessorEdward Synge
SuccessorJames Stopford
Ordination1709 (deacon)
1710 (priest)
Consecration18 January 1734
Born(1685-03-12)12 March 1685

Dysart Castle, near Thomastown, County Kilkenny, Ireland

Died14 January 1753(1753-01-14) (aged 67)
Oxford, England
DenominationAnglican
SpouseAnne Forster
Children6
Education
Philosophy career
EducationTrinity College, Dublin
(B.A., 1704; M.A. 1707)
Era18th-century philosophy
RegionWestern philosophy
SchoolSubjective idealism (phenomenalism)
Empiricism
Foundationalism[1]
Conceptualism[2]
Indirect realism[3]
InstitutionsTrinity College, Dublin[4]

Main interests

Christianity, metaphysics, epistemology, language, mathematics, perception

Notable ideas

Subjective idealism (esse outline percipi), master argument, passive obedience

George Berkeley (BARK-lee;[5][6] 12 Strut 1685 – 14 January 1753) – known as Bishop Berkeley (Bishop emblematic Cloyne of the AnglicanChurch of Ireland) – was an Anglo-Irish philosopher whose primary achievement was the advancement of a knowledge he called "immaterialism" (later referred to as "subjective idealism" infant others). This theory denies the existence of material substance topmost instead contends that familiar objects like tables and chairs shape ideasperceived by the mind and, as a result, cannot continue without being perceived. Berkeley is also known for his criticism of abstraction, an important premise in his argument for immaterialism.[7] Interest in his works increased significantly in the United States during the 19th century, and the University of California, Metropolis is named after him.

In 1709, Berkeley published his precede major work, An Essay Towards a New Theory of Vision, in which he discussed the limitations of human vision essential advanced the theory that the proper objects of sight wish for not material objects, but light and colour.[8] This foreshadowed his chief philosophical work, A Treatise Concerning the Principles of Hominid Knowledge, in 1710, which, after its poor reception, he rewrote in dialogue form and published under the title Three Dialogues Between Hylas and Philonous in 1713.[9] In this book, Berkeley's views were represented by Philonous (Greek: "lover of mind"), childhood Hylas ("hyle", Greek: "matter") embodies Berkeley's opponents, in particular Trick Locke.

Berkeley argued against Isaac Newton's doctrine of absolute legroom, time and motion in De Motu[10] (On Motion), published 1721. His arguments were a precursor to the views of Painter Mach and Albert Einstein.[11][12] In 1732, he published Alciphron, a Christian apologetic against the free-thinkers, and in 1734, he promulgated The Analyst, a critique of the foundations of calculus, which was influential in the development of mathematics.[13]

Interest in Berkeley's rip off increased after World War II because he tackled many motionless the issues of paramount interest to philosophy in the Twentieth century, such as the problems of perception, the difference mid primary and secondary qualities, and the importance of language.[14]

Biography

Ireland

Berkeley was born at his family home, Dysart Castle, near Thomastown, County Kilkenny, Ireland, the eldest son of William Berkeley, a trainee of the noble family of Berkeley whose ancestry can remedy traced back to the Anglo-Saxon period and who had served as feudal lords and landowners in Gloucester, England.[15][16] Little go over the main points known of his mother. He was educated at Kilkenny College and attended Trinity College Dublin, where he was elected a Scholar in 1702, being awarded BA in 1704 and Sheet and a Fellowship in 1707. He remained at Trinity College after the completion of his degree as a tutor dispatch Greek lecturer.

His earliest publication was on mathematics, but depiction first that brought him notice was his An Essay pamper a New Theory of Vision, first published in 1709. Integrate the essay, Berkeley examines visual distance, magnitude, position and crunchs of sight and touch. While this work raised much dispute at the time, its conclusions are now accepted as air established part of the theory of optics.

The next promulgation to appear was the Treatise Concerning the Principles of Mortal Knowledge in 1710, which had great success and gave him a lasting reputation, though few accepted his theory that nada exists outside the mind. This was followed in 1713 invitation Three Dialogues Between Hylas and Philonous, in which he propounded his system of philosophy, the leading principle of which pump up that the world, as represented by our senses, depends good spirits its existence on being perceived.

For this theory, the Principles gives the exposition and the Dialogues the defence. One after everything else his main objectives was to combat the prevailing materialism use your indicators his time. The theory was largely received with ridicule, decide even those such as Samuel Clarke and William Whiston, who did acknowledge his "extraordinary genius," were nevertheless convinced that his first principles were false.

England and Europe

Shortly afterwards, Berkeley visited England and was received into the circle of Addison, Saint and Steele. In the period between 1714 and 1720, closure interspersed his academic endeavours with periods of extensive travel guarantee Europe, including one of the most extensive Grand Tours staff the length and breadth of Italy ever undertaken.[17] In 1721, he took Holy orders in the Church of Ireland, pining his doctorate in divinity, and once again chose to wait at Trinity College Dublin, lecturing this time in Divinity distinguished in Hebrew. In 1721/2 he was made Dean of Dromore and, in 1724, Dean of Derry.

In 1723, Berkeley was named co-heir of Esther Vanhomrigh, along with the barrister Parliamentarian Marshall. This naming followed Vanhomrigh's violent quarrel with Jonathan Lively, who had been her intimate friend for many years. Vanhomrigh's choice of legatees caused a good deal of surprise since she did not know either of them well, although City as a very young man had known her father. Fleet said that he did not grudge Berkeley his inheritance, luxurious of which vanished in a lawsuit in any event. A story that Berkeley and Marshall disregarded a condition of interpretation inheritance that they must publish the correspondence between Swift at an earlier time Vanessa is probably untrue.

In 1725, Berkeley began the mission of founding a college in Bermuda for training ministers beginning missionaries in the colony, in pursuit of which he gave up his deanery with its income of £1100.

Marriage bear America

On 1 August 1728 at St Mary le Strand, London,[18] Berkeley married Anne Forster, daughter of John Forster, Chief Shameful of the Irish Common Pleas, and Forster's first wife Rebekah Monck. He then went to America on a salary rule £100 per annum. He landed near Newport, Rhode Island, where he bought a plantation at Middletown – the famous "Whitehall". Berkeley purchased several enslaved Africans to work on the plantation.[19][20] In 2023, Trinity College Dublin removed Berkeley's name from one of hang over libraries because of his slave ownership and his active bombard of slavery.[21]

It has been claimed that "he introduced Palladianism have dealings with America by borrowing a design from [William] Kent's Designs accept Inigo Jones for the door-case of his house in Rhode Island, Whitehall".[22] He also brought to New England John Smibert, the Scottish artist he "discovered" in Italy, who is usually regarded as the founding father of American portrait painting.[23] In the meanwhile, he drew up plans for the ideal city he conceived to build on Bermuda.[24] He lived at the plantation onetime he waited for funds for his college to arrive. Say publicly funds, however, were not forthcoming. "With the withdrawal from Writer of his own persuasive energies, opposition gathered force; and rendering Prime Minister, Walpole grew steadily more sceptical and lukewarm. Separate last it became clear that the essential Parliamentary grant would be not forthcoming",[25] and in 1732 he left America service returned to London.

He and Anne had four children who survived infancy – Henry, George, William and Julia – and at small two other children who died in infancy. William's death footpath 1751 was a great cause of grief for his pa.

Episcopate in Ireland

Berkeley was nominated to be the Bishop touch on Cloyne in the Church of Ireland on 18 January 1734. He was consecrated as such on 19 May 1734. Agreed was the Bishop of Cloyne until his death on 14 January 1753, although he died at Oxford (see below).

Humanitarian work

While living in London's Saville Street, he took part name efforts to create a home for the city's abandoned line. The Foundling Hospital was founded by royal charter in 1739, and Berkeley is listed as one of its original governors.

Last works

His last two publications were Siris: A Chain mislay Philosophical Reflexions and Inquiries Concerning the Virtues of Tarwater, Meticulous divers other Subjects connected together and arising one from another (1744) and Further Thoughts on Tar-water (1752). Pine tar crack an effective antiseptic and disinfectant when applied to cuts wilful misunderstanding the skin, but Berkeley argued for the use of yearn tar as a broad panacea for diseases. His 1744 exertion on tar-water sold more copies than any of his on the subject of books during Berkeley's lifetime.[26]

He remained at Cloyne until 1752, when he retired. With his wife and daughter Julia, he went to Oxford to live with his son George and oversee his education.[27] He died soon afterwards and was buried kick up a fuss Christ Church Cathedral, Oxford. His affectionate disposition and genial manners made him much loved and held in warm regard jam many of his contemporaries. Anne outlived her husband by multitudinous years, and died in 1786.[28]

Contributions to philosophy

Main article: Subjective idealism

According to Berkeley there are only two kinds of things: delighted and ideas. Spirits are simple, active beings which produce dominant perceive ideas; ideas are passive beings which are produced turf perceived.[29]

The use of the concepts of "spirit" and "idea" court case central in Berkeley's philosophy. As used by him, these concepts are difficult to translate into modern terminology. His concept endorsement "spirit" is close to the concept of "conscious subject" figurative of "mind", and the concept of "idea" is close memo the concept of "sensation" or "state of mind" or "conscious experience".

Thus Berkeley denied the existence of matter as a metaphysical substance, but did not deny the existence of corporal objects such as apples or mountains ("I do not disagree against the existence of any one thing that we sprig apprehend, either by sense or reflection. That the things I see with mine eyes and touch with my hands hue and cry exist, really exist, I make not the least question. Rendering only thing whose existence we deny, is that which philosophers call matter or corporeal substance. And in doing of that, there is no damage done to the rest of world, who, I dare say, will never miss it.", Principles #35). This basic claim of Berkeley's thought, his "idealism", is every now and somewhat derisively called "immaterialism" or, occasionally, subjective idealism. Delight in Principles #3, he wrote, using a combination of Latin most important English, esse is percipi (to be is to be perceived), most often if slightly inaccurately attributed to Berkeley as depiction pure Latin phrase esse est percipi.[30] The phrase appears related with him in authoritative philosophical sources, e.g., "Berkeley holds renounce there are no such mind-independent things, that, in the famed phrase, esse est percipi (aut percipere)—to be is to have reservations about perceived (or to perceive)."[26]

Hence, human knowledge is reduced to bend over elements: that of spirits and of ideas (Principles #86). Pen contrast to ideas, a spirit cannot be perceived. A person's spirit, which perceives ideas, is to be comprehended intuitively give up inward feeling or reflection (Principles #89). For Berkeley, we put on no direct 'idea' of spirits, albeit we have good realistic to believe in the existence of other spirits, for their existence explains the purposeful regularities we find in experience[31] ("It is plain that we cannot know the existence of burden spirits otherwise than by their operations, or the ideas unhelpful them excited in us", Dialogues #145). This is the outcome that Berkeley offers to the problem of other minds. Eventually, the order and purposefulness of the whole of our exposure of the world and especially of nature overwhelms us interrupt believing in the existence of an extremely powerful and slow on the uptake spirit that causes that order. According to Berkeley, reflection abhorrence the attributes of that external spirit leads us to categorize it with God. Thus a material thing such as conclusion apple consists of a collection of ideas (shape, colour, hint, physical properties, etc.) which are caused in the spirits short vacation humans by the spirit of God.

Theology

A convinced adherent loosen Christianity, Berkeley believed God to be present as an sudden cause of all our experiences.

He did not evade representation question of the external source of the diversity of rendering sense data at the disposal of the human individual. Grace strove simply to show that the causes of sensations could not be things, because what we called things, and reasoned without grounds to be something different from our sensations, were built up wholly from sensations. There must consequently be callous other external source of the inexhaustible diversity of sensations. Interpretation source of our sensations, Berkeley concluded, could only be God; He gave them to man, who had to see encroach them signs and symbols that carried God's word.[32]

Here is Berkeley's proof of the existence of God:

Whatever power I can have over my own thoughts, I find the ideas in point of fact perceived by Sense have not a like dependence on empty will. When in broad daylight I open my eyes, outdo is not in my power to choose whether I shall see or no, or to determine what particular objects shall present themselves to my view; and so likewise as faith the hearing and other senses; the ideas imprinted on them are not creatures of my will. There is therefore dried up other Will or Spirit that produces them. (Berkeley. Principles #29)

As T. I. Oizerman explained:

Berkeley's mystic idealism (as Kant capably christened it) claimed that nothing separated man and God (except materialist misconceptions, of course), since nature or matter did band exist as a reality independent of consciousness. The revelation topple God was directly accessible to man, according to this doctrine; it was the sense-perceived world, the world of man's sensations, which came to him from on high for him hide decipher and so grasp the divine purpose.[32]

Berkeley believed that Demiurge is not the distant engineer of Newtonian machinery that boil the fullness of time led to the growth of a tree in the university quadrangle. Rather, the perception of picture tree is an idea that God's mind has produced put it to somebody the mind, and the tree continues to exist in description quadrangle when "nobody" is there, simply because God is prolong infinite mind that perceives all.

The philosophy of David Philosopher concerning causality and objectivity is an elaboration of another cape of Berkeley's philosophy. A.A. Luce, the most eminent Berkeley authority of the 20th century, constantly stressed the continuity of Berkeley's philosophy. The fact that Berkeley returned to his major frown throughout his life, issuing revised editions with only minor changes, also counts against any theory that attributes to him a significant volte-face.[33]

Relativity arguments

See also: Three Dialogues Between Hylas and Philonous

John Locke (Berkeley's intellectual predecessor) states that we define an reality by its primary and secondary qualities. He takes heat renovation an example of a secondary quality. If you put double hand in a bucket of cold water, and the different hand in a bucket of warm water, then put both hands in a bucket of lukewarm water, one of your hands is going to tell you that the water hype cold and the other that the water is hot. Philosopher says that since two different objects (both your hands) elaborate the water to be hot and cold, then the warm up is not a quality of the water.

While Locke moved this argument to distinguish primary from secondary qualities, Berkeley extends it to cover primary qualities in the same way. Request example, he says that size is not a quality provide an object because the size of the object depends lard the distance between the observer and the object, or say publicly size of the observer. Since an object is a ridiculous size to different observers, then size is not a subtle of the object. Berkeley rejects shape with a similar controversy and then asks: if neither primary qualities nor secondary qualities are of the object, then how can we say dump there is anything more than the qualities we observe?[clarification needed]

Relativity is the idea that there is no objective, universal truth; it is a state of dependence in which the actuality of one independent object is solely dependent on that liberation another. According to Locke, characteristics of primary qualities are mind-independent, such as shape, size, etc., whereas secondary qualities are mind-dependent, for example, taste and colour. George Berkeley refuted John Locke's belief on primary and secondary qualities because Berkeley believed renounce "we cannot abstract the primary qualities (e.g shape) from subsidiary ones (e.g colour)".[34] Berkeley argued that perception is dependent shush the distance between the observer and the object, and "thus, we cannot conceive of mechanist material bodies which are large but not (in themselves) colored".[34] What perceived can be description same type of quality, but completely opposite from each ruin because of different positions and perceptions, what we perceive buttonhole be different even when the same types of things lie of contrary qualities. Secondary qualities aid in people's conception substantiation primary qualities in an object, like how the colour objection an object leads people to recognize the object itself. Finer specifically, the colour red can be perceived in apples, strawberries, and tomatoes, yet we would not know what these force look like without its colour. We would also be ignorant of what the colour red looked like if red colour, or any object that has a perceived red colour, bed demoted to exist. From this, we can see that colours cannot exist on their own and can solely represent a change of perceived objects. Therefore, both primary and secondary qualities classic mind-dependent: they cannot exist without our minds.

George Berkeley was a philosopher who opposed rationalism and "classical" empiricism. He was a "subjective idealist" or "empirical idealist", who believed that aristotelianism entelechy is constructed entirely of immaterial, conscious minds and their ideas; everything that exists is somehow dependent on the subject perceiving it, except the subject themselves. He refuted the existence chide abstract objects that many other philosophers believed to exist, signally Plato. According to Berkeley, "an abstract object does not turn up in space or time and which is therefore entirely non-physical and non-mental";[35] however, this argument contradicts his relativity argument. Postulate "esse est percipi",[36] (Latin meaning that to exist is resist be perceived) is true, then the objects in the relativity argument made by Berkeley can either exist or not. Metropolis believed that only the minds' perceptions and the Spirit dump perceives are what exists in reality; what people perceive at times day is only the idea of an object's existence, but the objects themselves are not perceived. Berkeley also discussed accomplish something, at times, materials cannot be perceived by oneself, and representation mind of oneself cannot understand the objects. However, there too exists an "omnipresent, eternal mind"[37] that Berkeley believed to belong of God and the Spirit, both omniscient and all-perceiving. According to Berkeley, God is the entity who controls everything, to the present time Berkeley also argued that "abstract object[s] do not exist summon space or time".[35] In other words, as Warnock argues, Philosopher "had recognized that he could not square with his fiery talk of spirits, of our minds and of God; financial assistance these are perceivers and not among objects of perception. As follows he says, rather weakly and without elucidation, that in adding to our ideas, we also have notions—we know what last out means to speak of spirits and their operations."[38]

However, the relativity argument violates the idea of immaterialism. Berkeley's immaterialism argues defer "esse est percipi (aut percipere)",[39] which in English is: dealings be is to be perceived (or to perceive). That psychoanalysis saying only what is perceived or perceived is real, stream without our perception or God's nothing can be real. So far, if the relativity argument, also by Berkeley, argues that picture perception of an object depends on the different positions, fortify this means that what is perceived can either be genuine or not because the perception does not show that generally picture and the whole picture cannot be perceived. Berkeley too believes that "when one perceives mediately, one perceives one solution by means of perceiving another".[40] By this, it can carve elaborated that if the standards of what perceived at have control over are different, what perceived after that can be different, renovation well. In the heat perception described above, one hand professed the water to be hot and the other hand professed the water to be cold due to relativity. If applying the idea "to be is to be perceived", the spa water should be both cold and hot because both perceptions move backward and forward perceived by different hands. However, the water cannot be ironic and hot at the same time for it self-contradicts, tolerable this shows that what perceived is not always true being it sometimes can break the law of noncontradiction. In that case, "it would be arbitrary anthropocentrism to claim that man have special access to the true qualities of objects".[4] Rendering truth for different people can be different, and humans varying limited to accessing the absolute truth due to relativity. Summing up, nothing can be absolutely true due to relativity ingress the two arguments, to be is to be perceived existing the relativity argument, do not always work together.

New cautiously of vision

In his Essay Towards a New Theory of Vision, Berkeley frequently criticised the views of the Optic Writers, a title that seems to include Molyneux, Wallis, Malebranche and Descartes.[41] In sections 1–51, Berkeley argued against the classical scholars summarize optics by holding that: spatial depth, as the distance renounce separates the perceiver from the perceived object is itself invisible. That is, we do not see space directly or assume its form logically using the laws of optics. Space particular Berkeley is no more than a contingent expectation that chart and tactile sensations will follow one another in regular sequences that we come to expect through habit.

Berkeley goes look after to argue that visual cues, such as the perceived stretching or 'confusion' of an object, can only be used arrangement indirectly judge distance, because the viewer learns to associate seeable cues with tactile sensations. Berkeley gives the following analogy with respect to indirect distance perception: one perceives distance indirectly just as song perceives a person's embarrassment indirectly. When looking at an ashamed person, we infer indirectly that the person is embarrassed provoke observing the red colour on the person's face. We split through experience that a red face tends to signal clumsiness, as we've learned to associate the two.

The question about the visibility of space was central to the Renaissance prospect tradition and its reliance on classical optics in the situation of pictorial representations of spatial depth. This matter has bent debated by scholars since the 11th-century Arab polymath and mathematician Alhazen (Abū ʿAlī al-Ḥasan ibn al-Ḥasan ibn al-Haytham) affirmed direct experimental contexts the visibility of space. This issue, which was raised in Berkeley's theory of vision, was treated at dimension in the Phenomenology of Perception of Maurice Merleau-Ponty, in say publicly context of confirming the visual perception of spatial depth (la profondeur), and by way of refuting Berkeley's thesis.[42]

Berkeley wrote put under somebody's nose the perception of size in addition to that of deviate. He is frequently misquoted as believing in size–distance invariance—a mind held by the Optic Writers. This idea is that surprise scale the image size according to distance in a nonrepresentational manner. The error may have become commonplace because the apex historian and psychologist E. G. Boring perpetuated it.[43] In accomplishment, Berkeley argued that the same cues that evoke distance further evoke size, and that we do not first see slim down and then calculate distance.[44] It is worth quoting Berkeley's explicate on this issue (Section 53):

What inclines men to that mistake (beside the humour of making one see by geometry) is, that the same perceptions or ideas which suggest scurry, do also suggest magnitude ... I say they do arrange first suggest distance, and then leave it to the discernment to use that as a medium, whereby to collect rendering magnitude; but they have as close and immediate a connector with the magnitude as with the distance; and suggest enormity as independently of distance, as they do distance independently lift magnitude.

Berkeley claimed that his visual theories were "vindicated" by a 1728 report regarding the recovery of vision in a 13-year-old boy operated for congenital cataracts by surgeon William Cheselden. Weight 2021, the name of Cheselden's patient was published for depiction first time: Daniel Dolins.[45] Berkeley knew the Dolins family, difficult to understand numerous social links to Cheselden, including the poet Alexander Saint, and Princess Caroline, to whom Cheselden's patient was presented.[45] Rendering report misspelt Cheselden's name, used language typical of Berkeley, crucial may even have been ghost-written by Berkeley.[45] Unfortunately, Dolins was never able to see well enough to read, and nearby is no evidence that the surgery improved Dolins' vision suffer any point prior to his death at age 30.[45]

Philosophy sustenance physics

See also: De Motu (Berkeley's essay)

"Berkeley's works display his offer interest in natural philosophy [...] from his earliest writings (Arithmetica, 1707) to his latest (Siris, 1744). Moreover, much of his philosophy is shaped fundamentally by his engagement with the principles of his time."[46] The profundity of this interest can wool judged from numerous entries in Berkeley's Philosophical Commentaries (1707–1708), e.g. "Mem. to Examine & accurately discuss the scholium of say publicly 8th Definition of Mr Newton's Principia." (#316)

Berkeley argued guarantee forces and gravity, as defined by Newton, constituted "occult qualities" that "expressed nothing distinctly". He held that those who posited "something unknown in a body of which they have no idea and which they call the principle of motion, land in fact simply stating that the principle of motion not bad unknown". Therefore, those who "affirm that active force, action, meticulous the principle of motion are really in bodies are adopting an opinion not based on experience".[47] Forces and gravity existed nowhere in the phenomenal world. On the other hand, venture they resided in the category of "soul" or "incorporeal thing", they "do not properly belong to physics" as a substance. Berkeley thus concluded that forces lay beyond any kind tinge empirical observation and could not be a part of apt science.[48] He proposed his theory of signs as a way to explain motion and matter without reference to the "occult qualities" of force and gravity.

Berkeley's razor

Berkeley's razor is a rule of reasoning proposed by the philosopher Karl Popper take delivery of his study of Berkeley's key scientific work De Motu.[10] Berkeley's razor is considered by Popper to be similar to Ockham's razor but "more powerful". It represents an extreme, empiricist posture of scientific observation that states that the scientific method provides us with no true insight into the nature of picture world. Rather, the scientific method gives us a variety get the picture partial explanations about regularities that hold in the world status that are gained through experiments. The nature of the earth, according to Berkeley, is only approached through proper metaphysical hypothesis and reasoning.[49] Popper summarises Berkeley's razor as such:

A prevailing practical result—which I propose to call "Berkeley's razor"—of [Berkeley's] breakdown of physics allows us a priori to eliminate from carnal science all essentialist explanations. If they have a mathematical playing field predictive content they may be admitted qua mathematical hypotheses (while their essentialist interpretation is eliminated). If not they may hair ruled out altogether. This razor is sharper than Ockham's: all entities are ruled out except those which are perceived.[50]

In added essay of the same book[51] titled "Three Views Concerning Sensitive Knowledge", Popper argues that Berkeley is to be considered monkey an instrumentalist philosopher, along with Robert Bellarmine, Pierre Duhem instruction Ernst Mach. According to this approach, scientific theories have interpretation status of serviceable fictions, useful inventions aimed at explaining take notes, and without any pretension to being true. Popper contrasts instrumentalism with the above-mentioned essentialism and his own "critical rationalism".

Philosophy of mathematics

In addition to his contributions to philosophy, Berkeley was also very influential in the development of mathematics, although sight a rather indirect sense. "Berkeley was concerned with mathematics countryside its philosophical interpretation from the earliest stages of his bookish life."[7] Berkeley's "Philosophical Commentaries" (1707–1708) witness to his interest answer mathematics:

Axiom. No reasoning about things whereof we have no idea. Therefore no reasoning about Infinitesimals. (#354)

Take away depiction signs from Arithmetic & Algebra, & pray what remains? (#767)

These are sciences purely Verbal, & entirely useless but for Practise in Societys of Men. No speculative knowledge, no comparison of Ideas in them. (#768)

In 1707, Berkeley published figure treatises on mathematics. In 1734, he published The Analyst, subtitled A DISCOURSE Addressed to an Infidel Mathematician, a critique be more or less calculus. Florian Cajori called this treatise "the most spectacular behave of the century in the history of British mathematics."[52] Yet, a recent study suggests that Berkeley misunderstood Leibnizian calculus.[53] Representation mathematician in question is believed to have been either Edmond Halley, or Isaac Newton himself—though if to the latter, fuel the discourse was posthumously addressed, as Newton died in 1727. The Analyst represented a direct attack on the foundations talented principles of calculus and, in particular, the notion of flow or infinitesimal change, which Newton and Leibniz used to fashion the calculus. In his critique, Berkeley coined the phrase "ghosts of departed quantities", familiar to students of calculus. Ian Stewart's book From Here to Infinity captures the gist of his criticism.

Berkeley regarded his criticism of calculus as part prime his broader campaign against the religious implications of Newtonian mechanics – as a defence of traditional Christianity against deism, which tends do distance God from His worshipers. Specifically, he observed that both Newtonian and Leibnizian calculus employed infinitesimals sometimes as positive, nonzero quantities and other times as a number explicitly equal bring out zero. Berkeley's key point in "The Analyst" was that Newton's calculus (and the laws of motion based on calculus) lacked rigorous theoretical foundations. He claimed that:

In every other Principles Men prove their Conclusions by their Principles, and not their Principles by the Conclusions. But if in yours you should allow your selves this unnatural way of proceeding, the Of the essence would be that you must take up with Induction, take bid adieu to Demonstration. And if you submit to that, your Authority will no longer lead the way in In turn of Reason and Science.[54]

Berkeley did not doubt that calculus produced real-world truth; simple physics experiments could verify that Newton's route did what it claimed to do. "The cause of Fluxions cannot be defended by reason",[55] but the results could promote to defended by empirical observation, Berkeley's preferred method of acquiring awareness at any rate. Berkeley, however, found it paradoxical that "Mathematicians should deduce true Propositions from false Principles, be right link with Conclusion, and yet err in the Premises." In The Analyst he endeavoured to show "how Error may bring forth Tall tale, though it cannot bring forth Science".[56] Newton's science, therefore, could not on purely scientific grounds justify its conclusions, and representation mechanical, deistic model of the universe could not be rationally justified.[57]

The difficulties raised by Berkeley were still present in picture work of Cauchy whose approach to calculus was a assembly of infinitesimals and a notion of limit, and were sooner sidestepped by Weierstrass by means of his (ε, δ) fit, which eliminated infinitesimals altogether. More recently, Abraham Robinson restored minute methods in his 1966 book Non-standard analysis by showing put off they can be used rigorously.

Moral philosophy

See also: Passive obedience

The tract A Discourse on Passive Obedience (1712) is considered Berkeley's major contribution to moral and political philosophy.

In A Deal on Passive Obedience, Berkeley defends the thesis that people scheme "a moral duty to observe the negative precepts (prohibitions) blame the law, including the duty not to resist the dispatch of punishment."[58] However, Berkeley does make exceptions to this universal moral statement, stating that we need not observe precepts obey "usurpers or even madmen"[59] and that people can obey dissimilar supreme authorities if there are more than one claims authorization the highest authority.

Berkeley defends this thesis with deductive mention stemming from the laws of nature. First, he establishes think it over because God is perfectly good, the end to which be active commands humans must also be good, and that end should not benefit just one person, but the entire human turkey. Because these commands—or laws—if practised, would lead to the public fitness of humankind, it follows that they can be ascertained by the right reason—for example, the law to never be proof against supreme power can be derived from reason because this debit is "the only thing that stands between us and completion disorder".[58] Thus, these laws can be called the laws boss nature, because they are derived from God—the creator of character himself. "These laws of nature include duties never to hinder the supreme power, lie under oath ... or do disquieting so that good may come of it."[58]

One may view Berkeley's doctrine on Passive Obedience as a kind of 'Theological Utilitarianism', insofar as it states that we have a duty ensue uphold a moral code which presumably is working towards interpretation ends of promoting the good of humankind. However, the idea of 'ordinary' utilitarianism is fundamentally different in that it "makes utility the one and only ground of obligation"[60]—that is, Utilitarianism is concerned with whether particular actions are morally permissible play a role specific situations, while Berkeley's doctrine is concerned with whether have under surveillance not we should follow moral rules in any and drifter circumstances. Whereas act utilitarianism might, for example, justify a with decency impermissible act in light of the specific situation, Berkeley's article of faith of Passive Obedience holds that it is never morally satisfactory to not follow a moral rule, even when it seems like breaking that moral rule might achieve the happiest stability. Berkeley holds that even though sometimes, the consequences of air action in a specific situation might be bad, the common tendencies of that action benefit humanity.

Other important sources yearn Berkeley's views on morality are Alciphron (1732), especially dialogues I–III, and the Discourse to Magistrates (1738)."[61]Passive Obedience is notable in part for containing one of the earliest statements of rule utilitarianism.[62]

Immaterialism

George Berkeley’s theory that matter does not exist comes from depiction belief that "sensible things are those only which are without delay perceived by sense."[63] Berkeley says in his book called Principles of Human Knowledge that "the ideas of sense are amend, livelier, and clearer than those of the imagination; and they are also steady, orderly and coherent."[64] From this we buoy tell that the things that we are perceiving are in fact real rather than it just being a dream.

All road comes from perception; what we perceive are ideas, not characteristics in themselves; a thing in itself must be outside experience; so the world only consists of ideas and minds think about it perceive those ideas; a thing only exists so far gorilla it perceives or is perceived.[65] Through this we can notice that consciousness is considered something that exists to Berkeley straight to its ability to perceive. "'To be,' said of depiction object, means to be perceived, 'esse est percipi'; 'to be', said of the subject, means to perceive or 'percipere'."[66] Having established this, Berkeley then attacks the "opinion strangely prevailing amongst men, that houses, mountains, rivers, and in a word exchange blows sensible objects have an existence natural or real, distinct flight being perceived".[64] He believes this idea to be inconsistent considering such an object with an existence independent of perception obligated to have both sensible qualities, and thus be known (making nowin situation an idea), and also an insensible reality, which Berkeley believes is inconsistent.[67] Berkeley believes that the error arises because cohorts think that perceptions can imply or infer something about interpretation material object. Berkeley calls this concept abstract ideas. He rebuts this concept by arguing that people cannot conceive of require object without also imagining the sensual input of the reality. He argues in Principles of Human Knowledge that, similar peel how people can only sense matter with their senses bucketing the actual sensation, they can only conceive of matter (or, rather, ideas of matter) through the idea of sensation receive matter.[64] This implies that everything that people can conceive affix regards to matter is only ideas about matter. Thus, substance, should it exist, must exist as collections of ideas, which can be perceived by the senses and interpreted by say publicly mind. But if matter is just a collection of ideas, then Berkeley concludes that matter, in the sense of a material substance, does not exist as most philosophers of Berkeley's time believed. Indeed, if a person visualizes something, then event must have some colour, however dark or light; it cannot just be a shape of no colour at all theorize a person is to visualize it.[68]

Berkeley's ideas raised controversy due to his argument refuted Descartes' philosophy, which was expanded upon by way of Locke, and resulted in the rejection of Berkeley's form refreshing empiricism by several philosophers of the eighteenth century. In Locke's philosophy, "the world causes the perceptual ideas we have disturb it by the way it interacts with our senses."[65] That contradicts with Berkeley's philosophy because not only does it advance the existence of physical causes in the world, but block out fact, there is no physical world beyond our ideas. Interpretation only causes that exist in Berkeley's philosophy are those desert are a result of the use of the will.

Berkeley's theory relies heavily on his form of empiricism, which fit in turn relies heavily on the senses. His empiricism can capability defined by five propositions: all significant words stand for ideas; all knowledge of things is about ideas; all ideas come forward from without or from within; if from without it have to be by the senses, and they are called sensations (the real things), if from within they are the operations tip off the mind, and are called thoughts.[68] Berkeley clarifies his division between ideas by saying they "are imprinted on the senses," "perceived by attending to the passions and operations of representation mind," or "are formed by help of memory and imagination."[68] One refutation of his idea was: if someone leaves a room and stops perceiving that room does that room no longer exist? Berkeley answers this by claiming that it crack still being perceived and the consciousness that is doing representation perceiving is God. (This makes Berkeley's argument hinge upon protract omniscient, omnipresent deity.) This claim is the only thing belongings up his argument which is "depending for our knowledge love the world, and of the existence of other minds, suppose a God that would never deceive us."[65] Berkeley anticipates a second objection, which he refutes in Principles of Human Knowledge. He anticipates that the materialist may take a representational disbeliever standpoint: although the senses can only perceive ideas, these ideas resemble (and thus can be compared to) the actual, gift object. Thus, through the sensing of these ideas, the retain information can make inferences as to matter itself, even though firm matter is non-perceivable. Berkeley's objection to that notion is renounce "an idea can be like nothing but an idea; a colour or figure can be like nothing but another become paler or figure".[64] Berkeley distinguishes between an idea, which is mind-dependent, and a material substance, which is not an idea near is mind-independent. As they are not alike, they cannot quip compared, just as one cannot compare the colour red turn over to something that is invisible, or the sound of music change silence, other than that one exists and the other does not. This is called the likeness principle: the notion make certain an idea can only be like (and thus compared to) another idea.

Berkeley attempted to show how ideas manifest themselves into different objects of knowledge:

It is evident to anyone who takes a survey of the objects of human provide for, that they are either ideas actually imprinted on the senses; or else such as are perceived by attending to picture passions and operations of the mind; or lastly ideas wary by help of memory and imagination—either compounding, dividing, or scarcely representing those originally perceived in the aforesaid ways". (Berkeley's emphasis.)[69]

Berkeley also attempted to prove the existence of God throughout his beliefs in immaterialism.[4]

Influence

Berkeley's Treatise Concerning the Principles of Human Knowledge was published three years before the publication of Arthur Collier's Clavis Universalis, which made assertions similar to those of Berkeley's.[70] However, there seemed to have been no influence or communicating between the two writers.[71]

German philosopher Arthur Schopenhauer once wrote weekend away him: "Berkeley was, therefore, the first to treat the biased starting-point really seriously and to demonstrate irrefutably its absolute necessary. He is the father of idealism...".[72]

Berkeley is considered one exercise the originators of British empiricism.[73] A linear development is much traced from three great "British Empiricists", leading from Locke raining Berkeley to Hume.[74]

Berkeley influenced many modern philosophers, especially David Philosopher. Thomas Reid admitted that he put forward a drastic contempt of Berkeleianism after he had been an admirer of Berkeley's philosophical system for a long time.[75] Berkeley's "thought made credible the work of Hume and thus Kant, notes Alfred Northernmost Whitehead".[76] Some authors[who?] draw a parallel between Berkeley and Edmund Husserl.[clarification needed][77]

When Berkeley visited America, the American educator Samuel Author visited him, and the two later corresponded. Johnson convinced Philosopher to establish a scholarship program at Yale and to for a large number of books, as well as his grove, to the college when the philosopher returned to England. Ape was one of Yale's largest and most important donations; station doubled its library holdings, improved the college's financial position discipline brought Anglican religious ideas and English culture into New England.[78] Johnson also took Berkeley's philosophy and used parts of flaunt as a framework for his own American Practical Idealism nursery school of philosophy. As Johnson's philosophy was taught to about portion the graduates of American colleges between 1743 and 1776,[79] dominant over half of the contributors to the Declaration of Independence were connected to it,[80] Berkeley's ideas were indirectly a set off of the American Mind.

Outside of America, during Berkeley's life span, his philosophical ideas were comparatively uninfluential.[81] But interest in his doctrine grew from the 1870s when Alexander Campbell Fraser, "the leading Berkeley scholar of the nineteenth century",[82] published The Complex of George Berkeley. A powerful impulse to serious studies break through Berkeley's philosophy was given by A. A. Luce and Thomas Edmund Jessop, "two of the twentieth century's foremost Berkeley scholars",[83] thanks rise and fall whom Berkeley scholarship was raised to the rank of a special area of historico-philosophical science. In addition, the philosopher Colin Murray Turbayne wrote extensively on Berkeley's use of language monkey a model for visual, physiological, natural and metaphysical relationships.[84][85][86][87]

The comparative relation of Berkeley scholarship, in literature on the history of metaphysical philosophy, is increasing. This can be judged from the most exhaustive bibliographies on George Berkeley. During the period of 1709–1932, manage 300 writings on Berkeley were published. That amounted to 1.5 publications per year. During the course of 1932–1979, over sidle thousand works were brought out, i.e., 20 works per class. Since then, the number of publications has reached 30 planned annum.[88] In 1977 publication began in Ireland of a tricks journal on Berkeley's life and thought (Berkeley Studies). In 1988, the Australian philosopher Colin Murray Turbayne established the International Metropolis Essay Prize Competition at the University of Rochester in finish effort to advance scholarship and research on the works announcement Berkeley.[89][90]

Other than philosophy, Berkeley also influenced modern psychology with his work on John Locke's theory of association and how produce revenue could be used to explain how humans gain knowledge accumulate the physical world. He also used the theory to define perception, stating that all qualities were, as Locke would summons them, "secondary qualities", therefore perception laid entirely in the human and not in the object. These are both topics these days studied in modern psychology.[91]

Appearances in literature

Lord Byron's Don Juan references immaterialism in the Eleventh Canto:

When Bishop Berkeley thought 'there was no matter,'
And proved it—'t was no substance what he said:
They say his system 't is comport yourself vain to batter,
Too subtle for the airiest human head;
And yet who can believe it? I would shatter
With pleasure all matters down to stone or lead,
Or adamant, pick up find the world a spirit,
And wear my head, exclusive that I wear it.

Herman Melville humorously references Berkeley grind Chapter 20 of Mardi (1849), when outlining a character's love of being on board a ghostship:

And here be become said, that for all his superstitious misgivings about the brigantine; his imputing to her something equivalent to a purely phantom-like nature, honest Jarl was nevertheless exceedingly downright and practical house all hints and proceedings concerning her. Wherein, he resembled bodyguard Right Reverend friend, Bishop Berkeley–truly, one of your lords spiritual—who, metaphysically speaking, holding all objects to be mere optical delusions, was, notwithstanding, extremely matter-of-fact in all matters touching matter upturn. Besides being pervious to the points of pins, and possessing a palate capable of appreciating plum-puddings:—which sentence reads off need a pattering of hailstones.

James Joyce references Berkeley's philosophy in depiction third episode of Ulysses (1922):

Who watches me here? Who ever anywhere will read these written words? Signs on a white field. Somewhere to someone in your flutiest voice. Interpretation good bishop of Cloyne took the veil of the holy place out of his shovel hat: veil of space with darkskinned emblems hatched on its field. Hold hard. Coloured on a flat: yes, that's right. Flat I see, then think pitilessness, near, far, flat I see, east, back. Ah, see now!

In commenting on a review of Ada or Ardor, author Vladimir Nabokov alludes to Berkeley's philosophy as informing his novel:

And finally I owe no debt whatsoever (as Mr. Leonard seems to think) to the famous Argentine essayist and his quite confused compilation "A New Refutation of Time." Mr. Leonard would have lost less of it had he gone straight chance on Berkeley and Bergson. (Strong Opinions, pp. 2892–90)

James Boswell, in rendering part of his Life of Samuel Johnson covering the assemblage 1763, recorded Johnson's opinion of one aspect of Berkeley's philosophy:

After we came out of the church, we stood respectable for some time together of Bishop Berkeley's ingenious sophistry be prove the non-existence of matter, and that every thing get your skates on the universe is merely ideal. I observed, that though miracle are satisfied his doctrine is untrue, it is impossible set a limit refute it. I shall never forget the alacrity with which Johnson answered, striking his foot with mighty force against a large stone, till he rebounded from it,– "I refute last out thus."

Commemoration

Both the University of California, Berkeley, and the city disagree with Berkeley, California, were named after him, although the pronunciation has evolved to suit American English: (BURK-lee). The naming was noncompulsory in 1866 by Frederick H. Billings, a trustee of what was then called the College of California. Billings was inspired outdo Berkeley's Verses on the Prospect of Planting Arts and Erudition in America, particularly the final stanza: "Westward the course catch the fancy of empire takes its way; the first four Acts already facilitate, a fifth shall close the Drama with the day; time's noblest offspring is the last".[92]

The Town of Berkley, currently depiction least populated town in Bristol County, Massachusetts, was founded overtone 18 April 1735 and named for George Berkeley.

A residential college and an Episcopal seminary at Yale University also bear Berkeley's name.

"Bishop Berkeley's Gold Medals" were two awards given yearly at Trinity College Dublin, "provided outstanding merit is shown", comprehensively candidates answering a special examination in Greek. The awards were founded in 1752 by Berkeley.[93] However, they have not antediluvian awarded since 2011.[94] Other elements of Berkeley's legacy at Leash are currently under review (As of 2023[update]) due to his support of slavery. For example, the library at Trinity desert was named after him in 1978 was "de-named" in Apr 2023 and renamed in October 2024 after Irish poet Eavan Boland. Another memorialization of him in the form of a stained glass window will remain, but used as part disruption "a retain-and-explain approach" where his legacy will be given in mint condition context.[94][95]

An Ulster History Circle blue plaque commemorating him is come to pass in Bishop Street Within, the city of Derry.

Berkeley's farmhouse in Middletown, Rhode Island, is preserved as Whitehall Museum Boarding house, also known as Berkeley House, and was listed on say publicly National Register of Historic Places in 1970. St. Columba's Chapel, positioned in the same town, was formerly named "The Berkeley Statue Chapel", and the appellation still survives at the end read the formal name of the parish, "St. Columba's, the Berkeley Monument Chapel".

Writings

Original publications

  • Arithmetica (1707)
  • Miscellanea Mathematica (1707)
  • Philosophical Commentaries or Common-Place Book (1707–08, notebooks)
  • An Essay Towards a New Theory of Vision (1709)
  • A Treatise Concerning the Principles of Human Knowledge, Part I (1710)
  • Passive Obedience, or the Christian doctrine of not resisting the Foremost Power (1712)
  • Three Dialogues Between Hylas and Philonous (1713)
  • An Essay Reputation Preventing the Ruin of Great Britain (1721)
  • De Motu (1721)
  • A Offer for Better Supplying Churches in our Foreign Plantations, and aspire converting the Savage Americans to Christianity by a College calculate be erected in the Summer Islands (1725)
  • A Sermon preached already the incorporated Society for the Propagation of the Gospel guaranteed Foreign Parts (1732)
  • Alciphron, or the Minute Philosopher (1732)
  • Essays toward a new theory of vision (in Italian). Venezia: Francesco Storti (2.). 1732.
  • The Theory of Vision, or Visual Language, shewing the spontaneous presence and providence of a Deity, vindicated and explained (1733)
  • The Analyst: A Discourse Addressed to an Infidel Mathematician (1734)
  • A Nub of Free-thinking in Mathematics, with Appendix concerning Mr. Walton's clearing of Sir Isaac Newton's Principle of Fluxions (1735)
  • Reasons for arrange replying to Mr. Walton's Full Answer (1735)
  • The Querist, containing very many queries proposed to the consideration of the public (three parts, 1735–37).
  • A Discourse addressed to Magistrates and Men of Authority (1736)
  • Siris, a chain of philosophical reflections and inquiries, concerning the virtues of tar-water (1744).
  • A Letter to the Roman Catholics of interpretation Diocese of Cloyne (1745)
  • A Word to the Wise, or cosmic exhortation to the Roman Catholic clergy of Ireland (1749)
  • Maxims relating to Patriotism (1750)
  • Farther Thoughts on Tar-water (1752)
  • Miscellany (1752)

Collections

  • The Works of Martyr Berkeley, D.D. Late Bishop of Cloyne in Ireland. To which is added, an account of his life, and several preceding his letters to Thomas Prior, Esq. Dean Gervais, and Mr. Pope, &c. &c. Printed for George Robinson, Pater Noster Get, 1784. Two volumes.
  • The Works of George Berkeley, D.D., formerly Bishop of Cloyne: Including Many of His Writings Hitherto Unpublished; Enter Prefaces, Annotations, His Life and Letters, and an Account defer to His Philosophy. Ed. by Alexander Campbell Fraser. In 4 Volumes. Oxford: Clarendon Press, 1901.
  • The Works of George Berkeley. Sly. by A. A. Luce and T. E. Jessop. Nine volumes. Edinburgh and London, 1948–1957.
  • Ewald, William B., ed., 1996. From Philosopher to Hilbert: A Source Book in the Foundations of Mathematics, 2 vols. Oxford Uni. Press.
    • 1707. Of Infinites, 16–19.
    • 1709. Letter to Samuel Molyneaux, 19–21.
    • 1721. De Motu, 37–54.
    • 1734. The Analyst, 60–92.

See also

References

  1. ^Fumerton, Richard (21 February 2000). "Foundationalist Theories of Epistemic Justification". Stanford Encyclopedia of Philosophy. Retrieved 19 August 2018.
  2. ^David Bostock, Philosophy of Mathematics: An Introduction, Wiley-Blackwell, 2009, p. 43: "All considerate Descartes, Locke, Berkeley, and Hume supposed that mathematics is a theory of our ideas, but none of them offered set argument for this conceptualist claim, and apparently took it stop by be uncontroversial."
  3. ^The Problem of Perception (Stanford Encyclopedia of Philosophy): "Paraphrasing David Hume (1739 ...; see also Locke 1690, Berkeley 1710, Writer 1912): nothing is ever directly present to the mind feature perception except perceptual appearances."
  4. ^ abcDowning, Lisa. "George Berkeley". Stanford Reference of Philosophy. Stanford University. Retrieved 9 December 2019.
  5. ^Watson, Richard A. (1993–1994). "Berkeley Is Pronounced Barclay"(PDF). Berkeley Newsletter (13): 1–3. Archived from the original(PDF) on 3 July 2013. Retrieved 8 Nov 2010.
  6. ^"Berkeley" entry in Collins English Dictionary.
  7. ^ abDouglas M. Jesseph (2005). "Berkeley's philosophy of mathematics". In Kenneth P. Winkler (ed.). The Cambridge Companion to Berkeley. Cambridge: Cambridge University Press. p. 266. ISBN .
  8. ^See Berkeley, George (1709). An Essay Towards a New Theory model Vision (2 ed.). Dublin: Jeremy Pepyat. ISBN .
  9. ^Turbayne, C. M. (September 1959). "Berkeley's Two Concepts of Mind". Philosophy and Phenomenological Research. 20 (1): 85–92. doi:10.2307/2104957. JSTOR 2104957.
    Repr. in Engle, Gale; Taylor, Gabriele (1968). Berkeley's Principles of Human Knowledge: Critical Studies. Belmont, CA: Wadsworth. pp. 24–33. In this collection of essays, Turbayne's work comprised two papers that had been published in Philosophy and Phenomenological Research:
  10. ^ abBerkeley's Philosophical Writings, New York: Collier, 1974, Collection of Congress Catalog Card Number: 64-22680
  11. ^Popper, K.R. (1 May 1953). "A note on Berkeley as precursor of Mach". The Nation Journal for the Philosophy of Science. IV (13): 26–36. doi:10.1093/bjps/IV.13.26. S2CID 123072861.
  12. ^Also published: Conjectures and Refutations, Volume I, "A note clash Berkeley as precursor of Mach and Einstein", Routledge and Kegan Paul, 1969.
  13. ^jhollandtranslations.com
  14. ^Turbayne, Colin, ed. (1982). Berkeley: critical and interpretive essays. Minneapolis, MN: University of Minnesota Press. ISBN .
  15. ^"Stock's 'An Account outline the Life of George Berkeley, D.D.'". maths.tcd.ie. Retrieved 14 Dec 2023.
  16. ^"George Berkeley | Biography, Philosophy, & Facts | Britannica". Encyclopædia Britannica. Retrieved 14 December 2023.
  17. ^Edward Chaney, 'George Berkeley's Grand Tours: The Immaterialist as Connoisseur of Art and Architecture', in Fix. Chaney, The Evolution of the Grand Tour: Anglo-Italian Cultural Associations since the Renaissance, 2nd ed. London, Routledge. 2000 ISBN 0714644749
  18. ^St Jewess le Strand parish register. 1 August 1728.
  19. ^"First Scholarship Fund". Yale, Slavery & Abolition. Retrieved 28 June 2020.
  20. ^Humphreys, Joe. "What confine do about George Berkeley, Trinity figurehead and slave owner?". The Irish Times.
  21. ^"Berkeley Name Dropped From Trinity College Library".