As a liberal pluralist hippy, I rarely have anything good to say for much of what passes under the name 'conservatism'. But John Kekes has summarized a kind of conservative pluralism which I find attractive. Though I do not agree entirely with his rejection of liberalism, nor his pessimism, I do find myself having similar thoughts on many variants of Rationalistic Liberalism. Here is the gist of his Conservatism from "Handbook of Political Theory", (Gerald Gaus, Ed.).
Changes, of course, are often necessary because traditions may be vicious, destructive, stultifying,
nay-saying, and thus not conducive to good lives. It is part of the purpose of the prevailing political
arrangements to draw distinctions among traditions that are unacceptable (like slavery), suspect but tolerable
(like pornography), and worthy of encouragement (like university education). Traditions that
violate the minimum requirements of human nature should be prohibited. Traditions that have shown
themselves to make questionable contributions to good lives should be tolerated but not encouraged.
Traditions whose historical record testifies to their importance for good lives should be cherished.
The obvious question is who should decide which tradition is which and how that decision
should be made. The answer conservatives give is that the decision should be made by those who are
legitimately empowered to do so through the political process of their society and they should make
the decisions by reflecting on the historical record of the tradition in question.
From this three corollaries follow. First, the people who are empowered to make the decisions
ought to be those who can and do view the prevailing political arrangements from a historical perspective.
The political process works well if it ends up empowering these people. They are unlikely to
be ill-educated, preoccupied with some single issue, inexperienced, or have qualifications that lie in
some other field of endeavour. Conservatives, in a word, are not in favour of populist politics. Second,
a society that proceeds in the manner just indicated is pluralistic because it fosters a plurality of traditions.
It does so because it sees as the justification of its political arrangements that they foster good
lives, and fostering them depends on fostering the traditions in which participation may make lives
good. Third, the society is tolerant because it is committed to having as many traditions as possible.
Its political arrangements place the burden of proof on those who wish to proscribe a tradition. If a tradition
has endured, if it has the allegiance of enough people to perpetuate it, then there is a prima facie
case for it. That case may be, and often is, defeated, but the initial presumption is in its favour.
This implies that a conservative society that is sceptical, pluralistic, and traditionalist will be in
favour of limited government. The purpose of its political arrangements is not to bring heaven on
earth by imposing on people some conception of a good life. No government has a mandate from
heaven. The political arrangements of a limited government interfere as little as possible with the
indigenous traditions that flourish among people subject to it. The purpose of its arrangements is to
enable people to live as they please, rather than to force them to live in a particular way. One of the
most important ways of accomplishing this is to have a wide plurality of traditions as a bulwark
between individuals and the government that has power over them.
...
Conservatism has been called the politics of imperfection (O’Sullivan, 1976: ch. 10; Quinton,
1978). This is in some ways an apt characterization, but it is misleading in others. It rightly suggests that
conservatives reject the idea of human perfectibility. (For the history of the idea, see Passmore, 1970;
Kekes, 1997.) Yet it is too sanguine because it implies that, apart from some imperfections, the
human condition is by and large all right. But it is worse than a bad joke to regard as mere imperfections
war, genocide, tyranny, torture, terrorism, the drug trade, concentration camps, racism, the murder
of religious and political opponents, easily avoidable epidemics and starvation, and other familiar
and widespread evils. Conservatives are much more impressed by the prevalence of evil than this label
implies. If evil is understood as serious unjustified harm caused by human beings, then the conservative
view is that the prevalence of evil is a permanent condition that cannot be significantly altered.
The politics of imperfection is a misleading label also because it suggests that the imperfection is in
human beings. Conservatives certainly think that human beings are responsible for much evil, but to
think only that is shallow. The prevalence of evil reflects not just a human propensity for evil, but also
a contingency that influences what propensities human beings have and develop independently of
human intentions. The human propensity for evil is itself a manifestation of this deeper and more pervasive
contingency, which operates through genetic inheritance, environmental factors, the confluence of
events that places people at certain places at certain times, the crimes, accidents, pieces of good or bad
fortune that happen or do not happen to them, the historical period, society, and family into which they are
born, and so forth. The same contingency also affects people because others whom they love and depend
on, and with whom their lives are intertwined in other ways, are as subject to it as they are themselves.
The view of thoughtful conservatives is not a hopeless misanthropic pessimism, according to
which contingency makes human nature evil rather than good. Their view is rather a realistic pessimism
that holds that whether the balance of good and evil propensities and their realization in people tilts one
way or another is a contingent matter over which human beings and their political arrangements have
insufficient control.8 This point needs to be stressed. Conservatives do not think that the human
condition is devoid of hope. They are, however, realistic about the limited control a society has over
its future. Their view is not that human beings are corrupt and that their evil propensities are uncontrollable.
Their view is rather that human beings have both good and evil propensities and neither
they nor their societies can exercise sufficient control to make the realization of good propensities
reliably prevail over the realization of evil ones. The right political arrangements help, of course,
just as the wrong ones make matters worse. But even under the best political arrangements a great
deal of contingency remains, and it places beyond human control much good and evil. The chief
reason for this is that human efforts to control contingency are themselves subject to the very contingency
they aim to control. And that, of course, is the fundamental reason why conservatives are
pessimistic and sceptical about the possibility of significant improvement in the human condition. It
is thus that the scepticism and pessimism of conservatives reinforce one another.
...
The central concern of conservatism is with political arrangements that make a society good. Since
conservatism takes the goodness of a society to depend on the goodness of the lives of the people
who live in it, it is a moral view. Good lives, of course, require much more than what political
arrangements can secure. The right political arrangements, however, do secure some of the conditions
necessary for them. These arrangements, according to conservatives, are discovered by
reflection on the history of the political arrangements that prevail in one’s society. This discloses
that the society is partly constituted of various enduring traditions in which individuals participate
because they conceive of good lives in terms of the beliefs, values, and practices that these traditions
embody. The reasons for or against particular political arrangements are then to be found by reflection
on their historical success or failure in fostering those traditions and participation in them that is
conducive to satisfying and beneficial lives. As a result of differences in history and circumstances,
political arrangements, traditions, and lives that are reasonably regarded as good are likely to vary
from society to society. Conservatives, therefore, do not seek to formulate a general theory that
provides a blueprint for a good society. There is no such blueprint.
This is why the most reasonable version of conservatism is sceptical and pluralistic. The absence of
a blueprint, however, does not mean that conservative politics is doomed to arbitrariness.
Good reasons in politics, beyond a basic level, are local and historically
conditioned. Their concern is with the evaluation of the arrangements and traditions that provide
the particular framework in which individuals can try to make good lives for themselves. This is why the
most reasonable version of conservatism is traditionalist. But it is also realistically pessimist because it
recognizes that the prevalence of evil is created by contingencies over which human control is imperfect,
since the attempts at control are affected by the very contingency they aim to control.