On the constrained and unconstrained visions.
Thomas Sowell : "
with visions it is different. These are the implicit assumptions with
which you operate. You may not articulate them even to yourself, but you are assuming
certain things when you talk or when you think. Seldom are those things spelled out."
Sowell's 'visions' are basically views about two things: human nature and
social knowledge.
To take human nature first: the constrained vision has a sober and
unsentimental view about it. It holds that human nature is essentially fixed
– people are as we find them, exhibiting a mixture of motives, some social
and some anti-social. Thus, if it is to succeed, public policy has to run with
the grain of human nature as we know it and to avoid assuming that it will
change in such a way as to help policy to succeed. This means that, in
order to improve society, we must focus on institutions and try to
understand the incentives people have to behave in social or anti-social
ways.
The unconstrained vision, by contrast, is optimistic about improving human
nature. It sees people as naturally social and perfectible. Public policy is therefore not a matter of incentives but of freeing people to realise their
natural, and naturally good, selves and educating them to conform to a new
order.
A quite concise summary helpfully provided by
New Zealand?
Finally, Thomas Sowell provides useful real life historical examples. The American Revolution and the French Revolution.
Well in France the idea was that if you simply put the right people in
charge and created the right institutions, then all these problems would go away. In the
United States, it was assumed from the outset that there were very limited things you
could do and what you needed to do above all was to minimize the damage done by the
flaws of human nature. This is why the United States for example has the Constitution,
so much lamented by some of those who believe in the French Revolution in which this
group is offset by that group and nobody can sort of run wild. If you believe that what
you need is to have the right leaders who love the people and so on, a Messiah as it were,
then your problems are solved. But if you do not believe there is any political Messiah,
and you believe that you have to make sure that all people are restrained in what they are
able to do, then you have the separation of power, you have elections, you have
Constitutions, you have all kinds of things hemming you in. According to Houssay who
was a great supporter of the French Revolution, could not understand why there was this
separation of powers. Not even when at the end of his life, he was arbitrarily thrown into
prison where he continued to write about why the Americans have this separation of
power. And of course if there is going to be a separation of power he would not be
rotting in prison.
In other words, in the constrained vision, human nature = good. In the unconstrained vision, human nature = bad.