Upload
frank-blaakmeer
View
214
Download
0
Embed Size (px)
Citation preview
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
1/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
1/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
91
Aanraden
127
Features
Nature, nurture and liberalvalues
ROGER SCRUTON 25TH JANUARY 2012 ISSUE 191
Biology determines our behaviour more than it suits many to
acknowledge. But peopleand politics and moralitycannot be
described just by neural impulses
The window to the soul or just acollection of cells? Transition 5
(detail) by Susan Aldworth
Beyond Human Nature by Jesse Prinz (Allen Lane,
22)
Incognito by David Eagleman (Canongate, 20)
You and Me: the Neuroscience of Identity by SusanGreenfield (Notting Hill Editions, 10)
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
2/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
2/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
Human beings are diverse and live in diverse ways.Should we accept that we are diverse by nature, having
followed separate evolutionary paths? Or should we
suppose that we share our biological inheritance, but
develop differently according to environment and
culture? Over recent years scientific research hasreshaped this familiar nature-nurture debate, which
remains central to our understanding of human nature
and morality.
For much of the 20th century social scientists held that
human life is a single biological phenomenon, which
flows through the channels made by culture, so as to
acquire separate and often mutually inaccessible forms.Each society passes on the culture that defines it, much
as it passes on its language. And the most important
aspects of culturereligion, rites of passage and lawboth unify the people who adhere to them and divide
those people from everyone else. Such was implied by
what John Tooby and Leda Cosmides called the
standard social science model, made fundamental to
anthropology by Franz Boas and to sociology by mileDurkheim.
More recently evolutionary psychologists have begun to
question that approach. Although you can explain the
culture of a tribe as an inherited possession, they
suggested, this does not explain how culture came to be
in the first place. What is it that endows culture with its
stability and function? In response to that question theopinion began to grow that culture does not provide the
ultimate explanation of any significant human trait, not
even the trait of cultural diversity. It is not simply that
there are extraordinary constants among cultures:gender roles, incest taboos, festivals, warfare, religious
beliefs, moral scruples, aesthetic interests. Culture is
also a part of human nature: it is our way of being. Wedo not live in herds or packs; our hierarchies are not
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
3/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
3/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
based merely on strength or sexual dominance. We
relate to one another through language, morality and
law; we sing, dance and worship together, and spend as
much time in festivals and storytelling as in seeking our
food. Our hierarchies involve offices, responsibilities,
gift-giving and ceremonial recognition. Our meals areshared, and food for us is not merely nourishment but an
occasion for hospitality, affection and dressing up. All
these things are comprehended in the idea of culture
and culture, so understood, is observed in all and only
human communities. Why is this?
The answer given by evolutionary psychologists is that
culture is an adaptation, which exists because itconferred a reproductive advantage on our hunter-
gatherer ancestors. According to this view many of the
diverse customs that the standard social science model
attributes to nurture are local variations of attributes
acquired 70 or more millennia ago, during the
Pleistocene age, and now (like other evolutionary
adaptations) hard-wired in the brain. But if this is so,
cultural characteristics may not be as plastic as the
social scientists suggest. There are features of the
human condition, such as gender roles, that people
have believed to be cultural and therefore changeable.
But if culture is an aspect of nature, cultural does not
mean changeable. Maybe these controversial features
of human culture are part of the genetic endowment of
human kind.
This new way of thinking gained support from the
evolutionary theory of morality. Defenders of nurture
suppose morality to be an acquired characteristic,
passed on by customs, laws and punishments in which
a society asserts its rights over its members. However,
with the development of genetics, a new perspective
opens. Altruism begins to look like a genetic strategy,which confers a reproductive advantage on the genes
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
4/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
4/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
that produce it. In the competition for scarce resources,
the genetically altruistic are able to call others to their
aid, through networks of co-operation that are withheld
from the genetically selfish, who are thereby eliminated
from the game.
If this is so, it is argued, then morality is not an acquired
but an inherited characteristic. Any competitor species
that failed to develop innate moral feelings would by now
have died out. And what is true of morality might be true
of many other human characteristics that have
previously been attributed to nurture: language, art,
music, religion, warfare, the local variants of which are
far less significant than their common structure.
I dont say that view of morality is right, though it has
been defended by a wide variety of thinkers, from the
biologist John Maynard Smith (its original proponent) via
the political scientist Robert Axelrod to such
popularisers as Matt Ridley and Richard Dawkins. But
even if morality is a partly acquired characteristic that
varies from place to place and time to time, it might stillrest on innate foundations, which govern its principal
contours.
Noam Chomskys speculative linguistics has proved
enormously important in this debate, since language is
at the root of culture in all its manifestations: it is a
paradigm case of a social activity that entirely changes
the relationships, capacities, knowledge and the world ofthose who engage in it. Yet there could be no
explanation of language that regarded it merely as a
socially transmitted trait, with no deeper roots in biology.
The rapid acquisition of language by children, at the
same rate in every part of the globe, and on the same
paucity of information from the surroundings, suggests
that there is an innate universal grammar, to which each
child attaches the fragmentary words and phrases that
strike his ear, to generate new and intelligible utterances
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
5/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
5/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
of his own. What Steven Pinker has called the language
instinct is implanted by evolution, which endows each
child with mental competences that are common to our
species.
If we follow the evolutionary biologists, therefore, we
may find ourselves pushed towards accepting that traits
often attributed to culture may be part of our genetic
inheritance, and therefore not as changeable as many
might have hoped: gender differences, intelligence,
belligerence, and so on through all the characteristics
that people have wished, for whatever reason, to rescue
from destiny and refashion as choice. But to speculate
freely about such matters is dangerous. The oncerespectable subject of eugenics was so discredited by
Nazism that dont enter is now written across its door.
The distinguished biologist James Watson, co-
discoverer of the double helix structure of DNA, was run
out of the academy in 2007 for having publicly
suggested (admittedly in less than scientific language)
that sub-Saharan Africans are genetically disposed to
have lower IQs than westerners, while the economist
Larry Summers suffered a similar fate for claiming that
the brains of women at the top end are less suited than
those of men to the study of the hard sciences. In
America it is widely assumed that socially significant
differences between ethnic groups and sexes are the
result of social factors, and in particular of
discrimination directed against the groups that seem todo less well. This assumption is not the conclusion of a
reasoned social science but the foundation of an
optimistic worldview, to disturb which is to threaten the
whole community that has been built on it. On the other
hand, as Galileo in comparable circumstances didnt
quite say, it aint necessarily so.
***
We find ourselves, therefore, in the middle of another
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
6/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
6/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
tense debate, in which it is not religion, but liberal
values, which seem to be challenged by the theory of
evolution. It is against this background that the
philosopher Jesse Prinz has entered the fray, with a big
book arguing that there is little reason to think that
biology has a major impact in accounting for humandifferences. He patiently examines the arguments given
for attributing this or that trait to genetic inheritance, and
tries to show either that the research is methodologically
flawed, or that the conclusion is not supported by it. I say
patiently, though
I should also add that, when it comes to discussing IQ
and
sexual differentiation, Prinz intemperately dismisses
those like Charles Murray, Richard Herrnstein and Larry
Summers who have not been persuaded by the liberal
consensus.
Prinz believes that our cognitive powers are awakened
only when they have experience on which to get to
work. Infants learn to divide the world into kinds by
extrapolating from what they feel, hear and see. There
are no innate classifications, and no roles or
relationships that are not in some sense and to some
measure socially constructed. Prinz attacks Chomskys
claim that there is a universal grammar and dismisses
the theory held by Jerry Fodor and others that our
mental processes are conducted in a shared language
of thought. Silent thinking, for Prinz, involves the use ofimages, which have their source in individual
experience, while language is picked up by a
spontaneous statistical analysis from which a child
derives the rules of grammar. Prinz even goes a little
way towards resuscitating the notorious Sapir-Whorf
hypothesis, according to which the structure of a
persons language determines the contours of his world.
Language, he writes, is an invention, not an instinct
If language teaches us about who we are, the lesson is
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
7/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
7/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
that we are fundamentally flexible. Prinz goes on to
argue that gender difference is to a great extent
acquired, that the distinction between individualists and
collectivists is cultural rather than biological, and that
emotions are socially constructed from raw material that
is innate only because it belongs to basic bodilyprocesses and gut reactions.
All that is argued boldly and with much support from the
literature of experimental psychology. But I could not
help feeling that it falls short of its target. In The Blank
Slate (2002) Steven Pinker assembled the evidence for
the conclusion that our fundamental capacities are
implanted by evolution and malleable only in thosematters in which malleability would confer a reproductive
advantage. His argument was meticulous and serious,
and the weight of scientific evidence impossible to deny.
In this or that particular the science might be faulted or
revised, but the broad case is surely compelling.
Consider, for example, the division of roles everywhere
to be observed between men and women. There is a
powerful reason to think that this is rooted in a deeper
division of biological labour, selected in the harsh
conditions that threatened our ancestors with extinction.
For human beings manifest neoteny, the trait of giving
birth to helpless large-brained offspring, who can look
after themselves only after ten years of nurture and
nowadays not even then. Neoteny is a huge
evolutionary advantage; but it is purchased at an equallyhuge biological cost. A species whose young are as
vulnerable as human children needs both organised
defence and serious home building if it is to reproduce
itself. And on those granite foundations has been built
the romantic castle of sexual difference.
But there is another reason for being dissatisfied with
Prinzs approach. When the idea of cultural diversity firsttook root in the German Enlightenment it was associated
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
8/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
8/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
with the study of the myths, customs and artworks of
antiquity, with the exploration of the religions of the east
and with visits to the tribal cultures of Africa and
America. A kind of imperial reverence for those things
animated the minds of those who studied them, and it
was with a hint of regret that the early anthropologistsrecorded the rapid collapse of local cultures under the
withering eye of their researches. Prinz belongs to
another mindsetone that can be observed in some of
the disciples of Boas. He does not have much sympathy
for any culture other than the one in which he is
immersedthe liberal egalitarian culture of the
American academy, which holds that sexual roles are
socially constructed, that sexual morality is exhausted
by the requirement of consent, and that all
disadvantage is down to environmental factors which
we can collaborate to overcome. He would perhaps
deny that this is a culture, rather than a set of rationally
held beliefs. But the whole tendency of his argument is
to suggest that we can and should live in the way that he
lives, not endowing our differences with the status ofnatural barriers or God-given paths, but opening
ourselves to a kind of soft diversity, in which human
possibilities flourish in a condition of mutual acceptance.
It may be that this is the direction in which we are
moving. But for all he says to the contrary it could be that
there are obstacles to progress that are fixed in our
nature and not to be changed by social adjustment. Weare familiar with the feminist charge that women come
out worse in maths tests because of unconscious
discrimination, stereotyping and other factors that
allegedly sap their confidencean argument that, in the
eyes of its proponents, was further proved by Larry
Summerss foolhardy attempt to question it. But does
anyone believe that men are ten times as likely to end
up in prison as women because of unconscious
discrimination or stereotyping? Of course not. We
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
9/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
9/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
recognise that men are by nature more aggressive and
more inclined to settle disputes by violence. And no
educated person is likely to dispute the fact that this
difference between men and women is genetic. The real
question is how far does this kind of genetic influence
extend? Susan Greenfield refers to recent brain-imagingresearch by Ryota Kanai and others at UCL which
purportedly suggests that students with conservative
political attitudes tend to have larger than normal
amygdalae, while among those of liberal persuasion it is
the anterior cingulate cortex that stands out. Could this
be the proof of WS Gilberts proposition, that Every child
who is born alive / Is either a little liberal / Or a little
conservative?
Those speculations bring us to another and far more
serious obstacle to the humane understanding of our
condition than the one that troubles Prinz. Advances in
neuroscience are beginning to suggest that, while the
brain is malleable and adaptable, it comes with its own
inherent restraints, and with connections that have been
wired without our knowledge and definitely without our
consent. Hence processes in the brain can affect our
decision-making without our being able to counter them.
When in 1966 Charles Whitman, a man of previously
good character, killed 13 people and wounded 32 more,
shooting from the top of the University Tower in Austin
Texas, he had already indicated that he felt something
was not quite right in his head. After he was shot by apolice marksman, an autopsy revealed a small tumour
pressing on the amygdala, which neuroscience regards
as the seat of the gut reactions through which we protect
our space. So was Whitman to blame for what he did?
And if not, does this provide me, after decades of
reproach for my conservative opinions, with the
amygdala excuse, just like Whitman?
Taking off from the Whitman case David Eagleman
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
10/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
10/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
argues that we should revise our sense of legal and
moral responsibility, so as to recognise that most of what
we do and feel arises from processes over which we
have no control. The brain moves incognito beneath our
conscious deliberations, like a great ocean liner on the
deck of which we walk up and down, imagining that wemove it with our feet. Offering his own version of the
Freudian story, in the luminous prose for which he is
rightly esteemed, Eagleman argues that most of what we
do is more influenced by unconscious than by
conscious processes, and that concepts like
responsibility and freedom cannot survive intact from the
advances of neuroscience. Whether it is nature or
nurture that wired up the brain, the wiring is for the most
part none of our doing, and nothing for which we can be
praised or blamed.
Eagleman is too subtle a thinker, and too responsible a
person, to draw quite that conclusion. He wants to revise
our concept of responsibility so that his kind of
responsibility is still contained in it. My brief response,
however, is to suggest that he has misdescribed the
problem. The picture that he gives, of the fragile I riding
the elephant of grey matter while pretending to be in
charge of it, misrepresents the nature of self-reference.
The word I does not refer to some conscious part of
the person, the rest of which is a passive and hidden it.
The I is one term of the I-You relation, which is a
relation of accountability in which the whole person isinvolved. To use the first-person pronoun is to present
myself for judgement. It is to take responsibility for a host
of changes in the world, and in particular for those for
which you can reasonably call me to account by asking
why? This question is the foundation of a co-operative
enterprise, in which we elicit from each other the
reasons, meanings and choices that make us intelligible.
Understanding the logic of the question why? is a task
that has been addressed by several recent philosophers
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
11/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
11/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
Elizabeth Anscombe, Stephen Darwall, Sebastian
Rdl and others. It is the question that underlies the
concept of responsibility in the common law. And
philosophers have done much to show that the dialogue
through which we establish and broker our
responsibilities is well founded and not necessarilyvulnerable to disruption by our newfound knowledge of
the brain.
This point suggests how Prinz might have put
philosophy to work on behalf of his conclusions. The
real question raised by evolutionary biology and
neuroscience is not whether those sciences can be
refuted, but whether we can acceptwhat they have tosay, while still holding on to the beliefs that morality
demands of us. From Kant and Hegel to Wittgenstein
and Husserl there have been attempts to give a
philosophyof the human condition that stands apart
from biological science without opposing it. But those
attempts are either not noticed or given short shrift in
Prinzs argument which, by attempting to fight the
biological sciences on their own ground, is condemned
to a losing wicket.
We are human beings, certainly. But we are also
persons. Human beings form a biological kind, and it is
for science to describe that kind. Probably it will do so in
the way that the evolutionary psychologists propose. But
persons do not form a biological kind, or any other sort
of natural kind. The concept of the person is shaped in
another way, not by our attempt to explain things but by
our attempt to understand, to interact, to hold to account,
to relate. The why? of personal understanding is not
the why? of scientific inference. And it is answered by
conceptualising the world under the aspect of freedom
and choice. People do what they do because of events
in their brains. But when the brain is normal they also actfor reasons, knowing what they are doing, and making
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
12/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
12/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
themselves answerable for it.
This does not mean that we should ignore what goes on
in the brain. In her lively monograph Susan Greenfield
emphasises that our brains are plastic and can be
influenced in ways that pose a risk to our moral
development. Prinzs defence of nurture against nature
may look like a defence of human freedom. But nurture
can as easily destroy freedom as enhance it. We can
bring up children on passive and addictive
entertainments that stultify their engagement with the
real world and rewire the neural networks on which their
moral development depends. The short-term pursuit of
gratification can drive out the long-term sense ofresponsible agency. Moreover, if children learn to store
their memory in computers and their social life in
portable gadgets, then gradually both memory and
friendship will wither, to linger on only as futile ghosts
haunting the digital archives.
I sympathise with those worries. But it does not change
the position that a philosopher should adopt.Greenfields argument suggests that there is a kind of
human development that prepares us, at the
neurological level, for the exercise of responsible
choice. If we bring up our children correctly, not spoiling
them or rewiring their brains through roomfuls of digital
gadgetry, the sense of responsibility will emerge. They
will enter fully into the world of I and You, become free
agents and moral beings, and learn to live as they
should, not as animals, but as persons.
Allow children to interact with real people, therefore, and
the grammar of first-person accountability will emerge of
its own accord. Undeniably, once it is there, the I-to-you
relation adds a reproductive advantage, just as do
mathematical competence, scientific knowledge and
(perhaps) musical talent. But the theory of adaptation
tells us as little about the meaning of I as it tells us
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
13/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
13/14prospectmagazine.co.uk//nature-nurture-and-liberal-values-roger-scruton-jesse-prinz-david-eagl
about the validity of mathematics, the nature of scientific
method or the value of music. To describe human traits
as adaptations is not to say how we understand them.
Even if we accept the claims of evolutionary psychology,
therefore, the mystery of the human condition remains.
This mystery is captured in a single question: how canone and the same thing be explainedas an animal, and
understoodas a person?
Follow Prospect on TwitterandFacebook
IF YOU LIKED THIS ARTICLE, WHY NOT TRY THE
FOLLOWING:
Freud: the last great Enlightenment thinkerSigmund
Freud is out of fashion. The reason? His heroic refusal
to flatter humankind, says John Gray
The great divide: Cinema, literature and other aspects
of western culture are increasingly open to Asian
influence. Not so western philosophy, which remains
almost entirely sealed off from eastern traditions. Why?
Richard Rorty He was arguably the most influential
philosopher of his time: an American who argued
against truth, reason and science. Yet his radicalism
turns out to be oddly disarming, writes Simon
Blackburn
Bookmark on Delicious
Digg this post
Recommend on Facebook
Share with Stumblers
Tweet about it
Subscribe to the comments on this post
8/3/2019 Nature, Nurture and Liberal Values _ Prospect Magazine
14/14
31-01-12 Nature, nurture and liberal values | Prospect Magazine
Section: FEATURES
Subject:
Tags:AESTHETIC INTERESTS,ALDWORTH,ASPECTS OF
CULTURE, BIOLOGICAL PHENOMENON, CANONGATE,
CULTURAL DIVERSITY, CULTURE RELIGION, DAVID EAGLEMAN,
DURKHEIM, FRANZ BOAS, GENDER ROLES, HIERARCHIES,
HUMAN NATURE, HUMAN TRAIT, INCEST TABOOS, JESSE PRINZ,
JOHN TOOBY, LEDA COSMIDES, LIBERAL VALUES, MORALITY
AND LAW, NATURE NURTURE, NATURE NURTURE DEBATE,
RITES OF PASSAGE, SEXUAL DOMINANCE, SOCIAL SCIENTISTS,
SUSAN GREENFIELD, TRANSITION 5