The Master and His Emissary: The Divided Brain and the Making of the Western World

So the left hemisphere needs certainty and needs to be right. The right hemisphere makes it possible to hold several ambiguous possibilities in suspension together without premature closure on one outcome.

The only certainty, it seems to me, is that those who believe they are certainly right are certainly wrong.

The model we choose to use to understand something determines what we find.

Compared with music all communication by words is shameless; words dilute and brutalise; words depersonalise; words make the uncommon common.

None of us actually lives as though there were no truth. Our problem is more with the notion of a single, unchanging truth.The word 'true' suggest a relationship between things: being true to someone or something, truth as loyalty, or something that fits, as two surfaces may be said to be 'true.' It is related to 'trust,' and is fundamentally a matter of what one believes to be the case. The Latin word verum (true) is cognate with a Sanskrit word meaning to choose or believe: the option one chooses, the situation in which one places one's trust. Such a situation is not an absolute - it tells us not only about the chosen thing, but also about the chooser. It cannot be certain: it involves an act of faith and it involves being faithful to one's intentions.

Emotion is inseparable from the body in which it is felt, and emotion is also the basis for our engagement with the world.

Our talent for division, for seeing the parts, is of staggering importance – second only to our capacity to transcend it, in order to see the whole. These gifts of the left hemisphere have helped us achieve nothing less than civilisation itself, with all that that means. Even if we could abandon them, which of course we can't, we would be fools to do so, and would come off infinitely the poorer. There are siren voices that call us to do exactly that, certainly to abandon clarity and precision (which, in any case, importantly depend on both hemispheres), and I want to emphasise that I am passionately opposed to them. We need the ability to make fine discriminations, and to use reason appropriately. But these contributions need to be made in the service of something else, that only the right hemisphere can bring. Alone they are destructive. And right now they may be bringing us close to forfeiting the civilisation they helped to create.

So thinking is prior to language. What language contributes is to firm up certain particular ways of seeing the world and give fixity to them. This has its good side, and its bad. It aids consistency of reference over time and space. But it can also exert a restrictive force on what and how we think. It represents a more fixed version of the world: it shapes, rather than grounds, our thinking.

According to Max Planck, ‘Anybody who has been seriously engaged in scientific work of any kind realizes that over the entrance to the gates of the temple of science are written the words: Ye must have faith. It is a quality which the scientist cannot dispense with.’ And he continued: ‘Science cannot solve the ultimate mystery of nature. And that is because, in the last analysis, we ourselves are part of nature and therefore part of the mystery that we are trying to solve.

we have to be constantly vigilant to undermine language’s attempt to undermine our understanding.

Every thing that purports to be the truth is, according to Heidegger, inevitably an approximation and true things, things that really are, rather than as we may apprehend them, are in themselves ineffable, ungraspable.

Although relatively speaking the right hemisphere takes a more pessimistic view of the self, it is also more realistic about it.457 There is evidence that (a) those who are somewhat depressed are more realistic, including in self-evaluation; and, see above, that (b) depression is (often) a condition of relative hemisphere asymmetry, favouring the right hemisphere.458 Even schizophrenics have more insight into their condition in proportion to the degree that they have depressive symptoms.459 The evidence is that this is not because insight makes you depressed, but because being depressed gives you insight.

Music – like narrative, like the experience of our lives as we live them – unfolds in time.

Goethe wisely wrote, however, that ‘we are, and ought to be, obscure to ourselves, turned outwards, and working upon the world which surrounds us.’13 We see ourselves, and therefore come to know ourselves, only indirectly, through our engagement with the world at large.

Non-verbal behaviour, language, facial expression, intonations and gestures are instrumental in establishing complex contradictory, predominantly emotional relations between people and between man and the world. How frequently a touch by the shoulder, a handshake or a look tell more than can be expressed in a long monologue. Not because our speech is not accurate enough. Just the contrary. It is precisely its accuracy and definiteness that make speech unsuited for expressing what is too complex, changeful and ambiguous.

Man has to awaken to wonder – and so perhaps do peoples. Science is a way of sending him to sleep again.

If language was given to men to conceal their thoughts, then gesture's purpose was to disclose them.’377

Metaphor is the crucial aspect of language whereby it retains its connectedness to the world, and

Believing is not to be reduced to thinking that such-and-such might be the case. It is not a weaker form of thinking, laced with doubt. Sometimes we speak like this: ‘I believe that the train leaves at 6:13', where ‘I believe that’ simply means that ‘I think (but am not certain) that’. Since the left hemisphere is concerned with what is certain, with knowledge of the facts, its version of belief is that it is just absence of certainty. If the facts were certain, according to its view, I should be able to say ‘I know that’ instead. This view of belief comes from the left hemisphere's disposition towards the world: interest in what is useful, therefore fixed and certain (the train timetable is no good if one can't rely on it). So belief is just a feeble form of knowing, as far as it is concerned.But belief in terms of the right hemisphere is different, because its disposition towards the world is different. The right hemisphere does not ‘know’ anything, in the sense of certain knowledge. For it, belief is a matter of care: it describes a relationship, where there is a calling and an answering, the root concept of ‘responsibility’. Thus if I say that ‘I believe in you’, it does not mean that I think that such-and-such things are the case about you, but can't be certain that I am right. It means that I stand in a certain sort of relation of care towards you, that entails me in certain kinds of ways of behaving (acting and being) towards you, and entails on you the responsibility of certain ways of acting and being as well. It is an acting ‘as if’ certain things were true about you that in the nature of things cannot be certain. It has the characteristic right-hemisphere qualities of being a betweenness: a reverberative, ‘re-sonant’, ‘respons-ible’ relationship, in which each party is altered by the other and by the relationship between the two, whereas the relationship of the believer to the believed in the left-hemisphere sense is inert, unidirectional, and centres on control rather than care. I think this is what Wittgenstein was trying to express when he wrote that ‘my’ attitude towards the other is an ‘attitude towards a soul. I am not of the opinion that he has a soul.’ An ‘opinion’ would be a weak form of knowledge: that is not what is meant by a belief, a disposition or an ‘attitude’.This helps illuminate belief in God. This is not reducible to a question of a factual answer to the question ‘does God exist?’, assuming for the moment that the expression ‘a factual answer’ has a meaning. It is having an attitude, holding a disposition towards the world, whereby that world, as it comes into being for me, is one in which God belongs. The belief alters the world, but also alters me. Is it true that God exists? Truth is a disposition, one of being true to someone or something. One cannot believe in nothing and thus avoid belief altogether, simply because one cannot have no disposition towards the world, that being in itself a disposition. Some people choose to believe in materialism; they act ‘as if’ such a philosophy were true. An answer to the question whether God exists could only come from my acting ‘as if’ God is, and in this way being true to God, and experiencing God (or not, as the case might be) as true to me. If I am a believer, I have to believe in God, and God, if he exists, has to believe in me. Rather like Escher's hands, the belief must arise reciprocally, not by a linear process of reasoning. This acting ‘as if’ is not a sort of cop-out, an admission that ‘really’ one does not believe what one pretends to believe. Quite the opposite: as Hans Vaihinger understood, all knowledge, particularly scientific knowledge, is no more than an acting ‘as if’ certain models were, for the time being, true. Truth and belief, once more, as in their etymology, are profoundly connected. It is only the left hemisphere that thinks there is certainty to be found anywhere.

If the detached, highly focused attention of the left hemisphere is brought to bear on living things, and not later resolved into the whole picture by right-hemisphere attention, which yields depth and context, it is destructive. .

Language enables the left hemisphere to represent the world ‘off-line’, a conceptual version, distinct from the world of experience, and shielded from the immediate environment, with its insistent impressions, feelings and demands, abstracted from the body, no longer dealing with what is concrete, specific, individual, unrepeatable, and constantly changing, but with a disembodied representation of the world, abstracted, central, not particularised in time and place, generally applicable, clear and fixed. Isolating things artificially from their context brings the advantage of enabling us to focus intently on a particular aspect of reality and how it can be modelled, so that it can be grasped and controlled. But its losses are in the picture as a whole. Whatever lies in the realm of the implicit, or depends on flexibility, whatever can't be brought into focus and fixed, ceases to exist as far as the speaking hemisphere is concerned.

Hölderlin’s lines: Wo aber Gefahr ist, wächst / Das Rettende auch (‘Where there is danger, that which will save us also grows’).

Thinking is always thinking, but philosophical thinking is, upon the whole, at the extreme end of the scale of distance from the active urgency of concrete situations. It is because of this fact that neglect of context is the besetting fallacy of philosophical thought … I should venture to assert that the most pervasive fallacy of philosophic thinking goes back to neglect of context … neglect of context is the greatest single disaster which philosophic thinking can incur.

Skills have been de-emphasised in art, as elsewhere in the culture. The atomistic nature of our individuality is made clear in Warhol’s tongue-in-cheek ambition for us each to be ‘famous for fifteen minutes’. We’ve all got to be as creative as one another: to accept that some people will always be exceptional is uncomfortable for us. Instead of seeing great art as an indication of what humanity can achieve, it comes to be seen as an expression of what another being, a potential competitor, has achieved.

David Levin, ‘prefers the distance of vision … even when it means dehumanisation’.149 But in this he was pursuing the belief that acknowledging our relationship with the world will make it obtrude. In reality it obtrudes more when not acknowledged. The baggage gets on board, as Dennett puts it, without being inspected. In a scientific paper, one may not say ‘I saw it happen’, but ‘the phenomenon was observed’. In Japan, however, science students, who ‘observe’ phenomena, do so with quite a different meaning, and in quite a different spirit, from their Western counterparts. The word kansatsu, which is translated as ‘observe’, is closer to the meaning of the word ‘gaze’, which we use only when we are in a state of rapt attention in which we lose ourselves, and feel connected to the other. The syllable kan in kansatsu contains the nuance that the one who gazes comes to feel a ‘one-body-ness’ with the object of gaze.150

And that means that we should be appropriately sceptical of the left hemisphere’s vision of a mechanistic world, an atomistic society, a world in which competition is more important than collaboration; a world in which nature is a heap of resource there for our exploitation, in which only humans count, and yet humans are only machines – not even very good ones, at that; a world curiously stripped of depth, colour and value. This is not the intelligent, if hard-nosed, view that its espousers comfort themselves by making it out to be; just a sterile fantasy, the product of a lack of imagination, which makes it easier for us to manipulate what we no longer understand. But it is a fantasy that displaces and renders inaccessible the vibrant, living, profoundly creative world that it was our fortune to inherit – until we squandered our inheritance.

The defining features of the human condition can all be traced to our ability to stand back from the world, from our selves and from the immediacy of experience. This enables us to plan, to think flexibly and inventively, and, in brief, to take control of the world around us rather than simply respond to it passively.

The right hemisphere underwrites breadth and flexibility of attention, where the left hemisphere brings to bear focussed attention. This has the related consequence that the right hemisphere sees things whole, and in their context, where the left hemisphere sees things abstracted from context, and broken into parts, from which it then reconstructs a ‘whole’: something very different.

we might have to revise the superior assumption that we understand the world better than our ancestors, and adopt a more realistic view that we just see it differently – and may indeed be seeing less than they did.

If there is a tendency for the right hemisphere to be more sorrowful and prone to depression, this can, in my view, be seen as related not only to being more in touch with what's going on, but more in touch with, and concerned for, others. ‘No man is an island’: it is the right hemisphere of the human brain that ensures that we feel part of the main. The more we are aware of and empathically connected to whatever it is that exists apart from ourselves, the more we are likely to suffer.