Sunday, April 28, 2019

George Berkeley’s common sense

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Gavin Ardley’s Complete Renovation of Berkeley
Part Two:
George Berkeley’s common sense


“The young Berkeley felt himself to be a man with a reforming mission.
Philosophers of the past, and especially the mathematicians and physicists
of the previous century, had, he believed, so mingled truth with error, that our educated knowledge of the world had become embarrassed with shameful contradictions …”.
Gavin Ardley
  
The following choice items from Gavin Ardley’s Berkeley’s Renovation of Philosophy (1968) have been taken from various chapters of the book as summarised at:
https://www.researchgate.net/scientific-contributions/2107069944_Gavin_Ardley
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The Mysterious Universe
When Berkeley admitted the relevance of common sense, he was introducing a notion of philosophical investigation diametrically opposed to the notion commonly accepted since Descartes. Under the Cartesian aegis we are directed to search for the clear and distinct, and to put aside all that is obscure, ill-defined, or in any way mysterious. Berkeley believed this search to be vain and illusory: These metaphysicians of the way of ideas and abstractions are not exploring the universe as it is; instead, they are fabricating a new universe composed of clear and distinct elements. They exclude mystery from their structure in the interest of clarity, but this clarity is worthless, and the construction a mere imposture. Berkeley observed that the quest for the clear and distinct generates its opposite: the other face of the clear and distinct is the non-entity, as witness the empty concepts of matter, absolute space, etc. A world rendered clear and distinct on the surface has, beneath that shining surface, the blankness or opacity of the irrational. The attempt to bring full light to one half of the world leaves the other in total darkness. In excluding mystery, these metaphysicians have thrust the world further away from us, rendered it paradoxical and absurd and ultimately unknowable. They have made an image of the world after their own likeness; and the image has feet of clay. ….

The Two Kinds of Metaphysics
From this preliminary review of Berkeley’s intentions we may better understand his words in praise of common sense.
The Exact Sciences
We have seen that in matters of education, pseudo-metaphysics has a positive, indeed indispensable, role in bringing our minds to maturity. The proviso being that the situation in which pseudo-metaphysics is allowed free play shall be one of antecedent strength and resilience. We have seen too that for a brief space Berkeley tacitly subscribed to this principle, as witness the dialectical composition of the body of the Principles and the Three Dialogues. But for a brief space only: elsewhere his attitude to pseudo-metaphysics tends to be simply negative and denunciatory; it is absurd and nonsensical, it encourages infidelity, it corrupts reason and common sense, and it hinders the progress of the sciences.
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The Analogy of the Grammar of Nature
The ideas of sense, observes Berkeley, come to us with sufficient regularity to admit of an expectancy growing up by habit and custom, whereby on the occasion of one idea we anticipate another. The first idea is then the sign of the second: “Ideas which are observed to be connected with other ideas come to be considered as signs, by means whereof things not actually perceived by sense are signified or suggested to the imagination, whose objects they are, and which alone perceives them” (T.V.V. 39). If there be a great variety of such arbitrary signs, closely articulated together, they will constitute a language — artificial if it be of human devising, but if instituted by the Author of Nature, then a natural language (T.V.V. 40). The non-visual senses provide us with signs, but their variety and articulation are not (except to some degree for sound) of a sufficiently high order for the ensemble to be called a language. It is vision, above all, (and in a minor degree sound) which provides us with a natural language: “All signs are not language: not even all significant sounds, such as the natural cries of animals, or the inarticulate sounds and interjections of men. It is the articulation, combination, variety, copiousness, extensive and general use and easy application of signs (all which are commonly found in vision) that constitute the true nature of language” (Alc. iv, 12). Hence Berkeley can say boldly “Vision is the language of the Author of Nature” (T.V.V. 38), therein re-affirming the pioneer doctrine of the New Theory of Vision. “Upon the whole, I think we may fairly conclude that the proper objects of vision constitute an universal language of the Author of Nature, whereby we are instructed how to regulate our actions in order to attain those things that are necessary to the preservation and well-being of our bodies, as also to avoid whatever may be hurtful and destructive of them” (N.T.V. 147). Adding, on later reflection, sound as the junior partner of vision in this divine sensible language (T.V.V. 40).
Berkeley’s Intentions
The Berkeley of popular tradition, of learned jest and limerick, is an eccentric figure, a ridiculous and unworldly metaphysician. The Berkeley who emerges from his correspondence, and from a study of his adventurous career, is a very different figure; one of those rare characters of noble simplicity, such as Plato envisaged for his guardians; a robust down-to-earth man, eminently sober, practical, and judicious; an independent man, who hated cant and abject conformity; a man who delighted in the richness and variety of things, and sympathised with all sorts and conditions of men; a man of learning and piety, imbued with joyous reforming zeal and missionary enterprise; yet no visionary or anarchist, rather one who disciplined his abundant energies into the channels of enlightened common sense.
The Problem of the Exact Sciences
In these first chapters (I–IV) we shall be concerned for the most part with Berkeley’s critique of the exact sciences, and his reflections on human knowledge as they arose out of his reading of Locke and Newton. In fact, the young Berkeley had meditated a great deal about other philosophical issues, and had read other authors, notably Malebranche and Bayle (oblique references to these French philosophers abound in the Philosophical Commentaries, the Principles and the Three Dialogues), Nevertheless, it was on Newton’s natural philosophy that Berkeley concentrated his attention in the early published works; and to attain a conspectus of Berkeley’s endeavours it is appropriate to confine attention at first to this element. Later, we shall look at Berkeley’s work in a more ample setting.
The Anthropocentric Character of Space, Time, and Motion
The principle of immaterialism once established, not only are paradoxes immediately connected with the notion of matter eliminated, but many other paradoxes and distorted presentations, not at first evidently associated with matter, are found to dissolve away: “Matter being once expelled out of Nature, drags with it so many sceptical and impious notions, such an incredible number of disputes and puzzling questions —” (Pr. 96). Not least amongst these are the puzzles raised by mathematical physics regarding space, time, and motion.
The Rôle of Common Sense
The metaphysical extravagances of the Seventeenth Century provoked a reaction. Men such as Fenelon and Buffier in France, Berkeley in Ireland, Reid and his circle in Scotland, and, in a paradoxical way, David Hume, rose up to advance the claims of common sense.1 But they did so in radically different ways: and it soon became apparent that some of the proffered explications of common sense had within them vices similar to those which they were intended to extirpate.
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Berkeley’s Dialectic
In a revealing jotting of his youth (apparently an addendum to the Note Books) Berkeley writes: “He that would win another over to his opinion must seem to harmonize with him at first and humour him in his own way of talking. From my childhood I had an unaccountable turn of thought that way.” (Works ix, p. 153).
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Mathematics and Nature
The young Berkeley felt himself to be a man with a reforming mission. Philosophers of the past, and especially the mathematicians and physicists of the previous century, had, he believed, so mingled truth with error, that our educated knowledge of the world had become embarrassed with shameful contradictions (P.C. 679, Pr. Intro. 1). The problem was, how best to set it right, without incurring too much hostility and so bringing the reform to nought: “People will say, ‘I am young, I am an upstart, I am a pretender, I am vain …’” (P.C. 465). Great caution, therefore, must be exercised: “Mem.”, notes Berkeley, “Upon all occasions to use the utmost modesty. To confute the mathematicians with the utmost civility and respect. Not to style them Nihilarians, etc.” (P.C. 633). He resolved on the plan of correcting men’s mistakes without altering their language. “This makes truth glide into their souls insensibly” (P.C. 185).1 Accordingly, he adopted current popular terms such as “idea” and “in the mind,” but gave them new tacit meanings.2 The results of these tactics were not, on the whole, what the author intended. He had a few discerning readers, but for the most part he has been thought an ingenious sophist, a subjective idealist, or, latterly, a positivist and a forerunner of the positivistic interpretation of the sciences.
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Philosophical Scruples: Their Cause and Cure
The illiterate bulk of mankind, observes Berkeley, walk the highroad of plain common sense (Pr. Intro. 1). They follow sense and instinct, and thus remain easy and undisturbed, because familiarity breeds accountability and comprehension. Illiterate men are not unreflective, but rather the reverse. They do not enjoy the benefits of literacy; but neither do they suffer from its evils. The illiterate bulk of mankind have never heard sceptical doubts voiced; or if they have so heard they shrug off such reasonings. Illiterate reflections may be eccentric; but they will not be absurd.
Berkeley was not actuated by any sentimental attachment to common sense. Rather did he regard criticised common sense as something ultimately inescapable, try as we may. In men at their best the nature of common sense is most patent. But the force of common sense is most clearly exhibited at the opposite pole: that men at their worst and most perverse cannot escape it. They betray its presence at every moment in practice, (cf. VI, 3.) Long ago, Plato pointed to something analogous in his argument for the primacy of morality: robbers are immoral in their external dealings, but must perforce be moral in their internal dealings. (Rep. 351 f.) St. Augustine summed up the situation on one pungent phrase: “No vice, however unnatural, can pull nature up by the roots” (De Civ. Dei, xix, 12).
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The Role of Play in the Philosophy of Plato
We are little accustomed in modern times to think of philosophy in terms of play. With few exceptions, philosophers in the last few centuries are conspicuous for their gravity. If a lighter touch enters their writings it is rather as a douceur with which to punctuate argument. To charge a philosopher with playing games is to condemn his activity as trivial and futile.

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