Thoâ yet the Treat is only Sound.1
John Locke (1632â1704) was an English physician and Fellow of the Royal Society of London. He became famous as the author of the Essay Concerning Human Understanding (1690) and Two Treatises of Government (1690), and henceforth was regarded as a âphilosopherâ and the reputed founder of English âempiricism,â a term he never used. In this chapter, I suggest that by recognising that Locke was not only a philosopher, but also a physician, traveller and scientific virtuoso, we may deepen our understanding of his attitude to sound, in these ways â as one of the five senses; as a negative presence, in ânoiseâ; and as the medium of civil conversation.
In 1656, the young Locke witnessed the arraigning of the radical preacher James Nayler (1618?â60) and other dissident Quakers at Westminster Hall, London. He wrote to his father, saying that:
Nailer one man more and 3 or 4 women of the tribe all with white gloves and the womens heads in white baggs. their carriage was strange to me, one of the women made a continued humming noise longer then the reach of an ordinari breath without motion either of lips or breath that I who stood next her could perceive. [they did not answer questions put to them] or did it with a great deale of suttlety besides the cover and cunning of that language which others and I beleeve they them selves scarce understand.2
Although the Quakers were a small, tight sect, Locke came to see them as exemplifying a more general feature of human nature: namely, that individuals bound together by strong sympathies influenced each other, often in deleterious ways. In October 1659, in a letter to a friend, he declared that âwe are all Quakers here and there is not a man but thinks he alone hath this light within and all besids stumble in the darke.â3 In Lockeâs estimate, the Quakers were âenthusiastsâ who felt sure in their breasts that they were guided by an inner light direct from God. He added a separate chapter on âEnthusiasmâ to the fourth edition of the Essay.4 For Locke, intelligible conversation relied on spoken words acting as signifiers of âIdeas.â5 The link between word and idea was conventional and hence required a social contract. Such a contract might well be limited to two persons, or to the members of a sect like the Quakers, but this could be dangerous. At the encounter in London in 1656, Locke noted that some human sounds, apparently serving as communication, could appear as mere incoherent mumbling, or noise, to those outside the circle of initiates.
The senses
The question of what Locke thought about âsoundâ can be approached by considering his answer, in the Essay, to the question of how individuals acquired knowledge. He considered the five senses as the avenues by which information of the world reached the mind. By his account, this took place via a sequence of sensations, perceptions, formation of simple ideas, comparative reflection by the âJudgmentâ on these, combinations of such ideas as complex ideas and the retention of ideas in memory.6 To some extent, this model of mental processing was the Aristotelian one, as elaborated by subsequent thinkers, including the Scholastics. It was taken as a starting point by Locke and his contemporaries, such as Thomas Hobbes and RenĂ© Descartes.7
One consequence of this model was that knowledge produced in the mind depended on input from the senses, which themselves might be weak or faulty. Accordingly, there was fascination with the notion of augmenting the senses â for example, by taking drugs, or by the use of instruments such as spectacles, telescopes and microscopes or, in the case of hearing, by the attachment of various ear trumpets. Another speculation was that the senses could be bypassed altogether. John Evelyn, diarist, virtuoso and Fellow of the Royal Society of London, told of someone who contended that âif a hole could dextrously be boarâd through the Skull to the Brain, in the midst of the Fore-head, a man might both see, & hear, & smell without the use of any other Organs.â This person was âone Tom Whittal, a student of Christ-Churchâ (incidentally, Lockeâs college at Oxford).8 Yet, however input to the brain was delivered, Locke maintained that the cognitive outcome depended on analysis and reflection conducted by the reason or judgement, often referred to simply as âthe mind.â9
In his Essay, Locke offered a rigorous account of the distinctive input from the various senses. He regarded specific ideas as dependent on information from specific senses:
But all that are born into the World being surrounded with Bodies, that perpetually and diversely affect them, variety of Ideas, whether care be taken about it or no, are imprinted on the Minds of Children. Light, and Colours, are busie at hand every where, when the Eye is but open; Sounds, and some tangible Qualities fail not to solicite their proper Senses, and force an entrance to the Mind; but yet, I think, it will be granted easily, That if a Child were kept in a place, where he never saw any other but Black and White, till he were a Man, he would have no more Ideas of Scarlet or Green, than he that from his Childhood never tasted an Oyster, or a Pine-Apple, has of those particular Relishes.10
And a little further on:
The same inability, will every one find in himself, who shall go about to fashion in his Understanding any simple Idea, not received in by his Senses, from external Objects, or by reflection from the Operations of his own mind about them. I would have any one try to fancy any Taste, which had never affected his Palate; or frame the Idea of a Scent, he had never smelt: And when he can do this, I will also conclude, that a blind Man hath Ideas of Colours, and a deaf Man true distinct Notions of Sounds.11
What later became known as the âMolyneux problemâ involved a separation of sensations delivered by two of the senses, sight and touch. On 2 March 1693, Lockeâs friend, the Irish politician and philosopher William Molyneux (1656â98), wrote from Dublin about a question stimulated by a passage in the Essay:
I will conclude my tedious lines with a Jocose Problem, that, upon Discourse with several concerning your Book and Notions, I have proposed to divers very ingenious Men, ⊠tis this: Suppose a Man born blind, and now adult, and taught by his Touch to Distinguish between a Cube and a Sphere (Suppose) of Ivory, nighly of the same Bignes, so as to tel, when he felt One and tother, which is the Cube which the Sphaere. Suppose then, the Cube and Sphaere placed on a Table, and the Blind man to be made to see. Quaere whether by his sight, before he touchd them, he could now Distinguish and tel which is the Globe which the Cube. I answer, Not; for tho he has obtaind the Experience of How a Globe, how a Cube affects his Touch. Yet he has not yet attaind the Experience, that what affects my Touch so or so, must affect my Sight so or so; or that a Protuberant Angle in the Cube that presd his hand unequally, shall appear to his Eye as it does in the Cube. But of this enough; perhaps you may find some place in your Essay, wherein you may not think it amis to say something of this Problem.12
In adding his response to this problem in the fourth edition of the Essay (1700), Locke said:
I agree with this thinking Gent. whom I am proud to call my Friend, in his answer to this his Problem; and am of opinion, that the Blind Man, at first sight, would not be able with certainty to say, which was the Globe, which the Cube, whilst he only saw them: though he could unerringly name them by his touch, and certainly distinguish them by the difference of their Figures felt. This I have set down, and leave with my Reader, as an occasion for him to consider, how much he may be beholding to experience, improvement, and acquired notions, where he thinks he has not the least use of, or help from them.13
Locke did not use this thought experiment to show the greater power of one sense over another; rather, his point concerned the inability of one sense, in the short term of this scenario, to supply information to another.14 However, such comparison and ranking of the different senses was common in his day.