From The Constitution of Liberty (1960):
As has often been acknowledged by conservative writers, one of the fundamental traits of the conservative attitude is a fear of change, a timid distrust of the new as such, while the liberal position is based on courage and confidence, on a preparedness to let change run its course even if we cannot predict where it will lead. There would not be much to object to if the conservatives merely disliked too rapid change in institutions and public policy; here the case for caution and slow process is indeed strong. But the conservatives are inclined to use the powers of government to prevent change or to limit its rate to whatever appeals to the more timid mind. In looking forward, they lack the faith in the spontaneous forces of adjustment which makes the liberal accept changes without apprehension, even though he does not know how the necessary adaptations will be brought about. It is, indeed, part of the liberal attitude to assume that, especially in the economic field, the self-regulating forces of the market will somehow bring about the required adjustments to new conditions, although no one can foretell how they will do this in a particular instance. There is perhaps no single factor contributing so much to people's frequent reluctance to let the market work as their inability to conceive how some necessary balance, between demand and supply, between exports and imports, or the like, will be brought about without deliberate control. The conservative feels safe and content only if he is assured that some higher wisdom watches and supervises change, only if he knows that some authority is charged with keeping the change "orderly."
This fear of trusting uncontrolled social forces is closely related to two other characteristics of conservatism: its fondness for authority and its lack of understanding of economic forces. Since it distrusts both abstract theories and general principles, it neither understands those spontaneous forces on which a policy of freedom relies nor possesses a basis for formulating principles of policy. Order appears to the conservative as the result of the continuous attention of authority, which, for this purpose, must be allowed to do what is required by the particular circumstances and not be tied to rigid rule. A commitment to principles presupposes an understanding of the general forces by which the efforts of society are co-ordinated, but it is such a theory of society and especially of the economic mechanism that conservatism conspicuously lacks. ...
Let me return, however, to the main point, which is the characteristic complacency of the conservative toward the action of established authority and his prime concern that this authority be not weakened rather than that its power be kept within bounds. This is difficult to reconcile with the preservation of liberty. In general, it can probably be said that the conservative does not object to coercion or arbitrary power so long as it is used for what he regards as the right purposes. He believes that if government is in the hands of decent men, it ought not to be too much restricted by rigid rules. Since he is essentially opportunist and lacks principles, his main hope must be that the wise and the good will rule - not merely by example, as we all must wish, but by authority given to them and enforced by them. Like the socialist, he is less concerned with the problem of how the powers of government should be limited than with that of who wields them; and, like the socialist, he regards himself as entitled to force the value he holds on other people.
When I say that the conservative lacks principles, I do not mean to suggest that he lacks moral conviction. The typical conservative is indeed usually a man of very strong moral convictions. What I mean is that he has no political principles which enable him to work with people whose moral values differ from his own for a political order in which both can obey their convictions. It is the recognition of such principles that permits the coexistence of different sets of values that makes it possible to build a peaceful society with a minimum of force. The acceptance of such principles means that we agree to tolerate much that we dislike. There are many values of the conservative which appeal to me more than those of the socialists; yet for a liberal the importance he personally attaches to specific goals is no sufficient justification for forcing others to serve them. ...
To live and work successfully with others requires more than faithfulness to one's concrete aims. It requires an intellectual commitment to a type of order in which, even on issues which to one are fundamental, others are allowed to pursue different ends. It is for this reason that to the liberal neither moral nor religious ideals are proper objects of coercion, while both conservatives and socialists recognize no such limits. I sometimes feel that the most conspicuous attribute of liberalism that distinguishes it as much from conservatism as from socialism is the view that moral beliefs concerning matters of conduct which do not directly interfere with the protected sphere of other persons do not justify coercion.
In the last resort, the conservative position rests on the belief that in any society there are recognizably superior persons whose inherited standards and values and position ought to be protected and who should have a greater influence on public affairs than others. The liberal, of course, does not deny that there are some superior people - he is not an egalitarian - bet he denies that anyone has authority to decide who these superior people are. While the conservative inclines to defend a particular established hierarchy and wishes authority to protect the status of those whom he values, the liberal feels that no respect for established values can justify the resort to privilege or monopoly or any other coercive power of the state in order to shelter such people against the forces of economic change. Though he is fully aware of the important role that cultural and intellectual elites have played in the evolution of civilization, he also believes that these elites have to prove themselves by their capacity to maintain their position under the same rules that apply to all others.
Closely connected with this is the usual attitude of the conservative to democracy. I have made it clear earlier that I do not regard majority rule as an end but merely as a means, or perhaps even as the least evil of those forms of government from which we have to choose. But I believe that the conservatives deceive themselves when they blame the evils of our time on democracy. The chief evil is unlimited government, and nobody is qualified to wield unlimited power. The powers which modern democracy possesses would be even more intolerable in the hands of some small elite. Admittedly, it was only when power came into the hands of the majority that further limitations of the power of government was thought unnecessary. In this sense democracy and unlimited government are connected. But it is not democracy but unlimited government that is objectionable, and I do not see why the people should not learn to limit the scope of majority rule as well as that of any other form of government. At any rate, the advantages of democracy as a method of peaceful change and of political education seem to be so great compared with those of any other system that I can have no sympathy with the antidemocratic strain of conservatism. It is not who governs but what government is entitled to do that seems to me the essential problem. ...
Though the liberal certainly does not regard all change as progress, he does regard the advance of knowledge as one of the chief aims of human effort and expects from it the gradual solution of such problems and difficulties as we can hope to solve. Without preferring the new merely because it is new, the liberal is aware that it is of the essence of human achievement that it produces something new; and he is prepared to come to terms with new knowledge, whether he likes its immediate effects or not.
Personally, I find that the most objectionable feature of the conservative attitude is its propensity to reject well-substantiated new knowledge because it dislikes some of the consequences which seem to follow from it - or, to put it bluntly, its obscurantism. I will not deny that scientists as much as others are given to fads and fashions and that we have much reason to be cautious in accepting the conclusions that they draw from their latest theories. But the reasons for our reluctance must themselves be rational and must be kept separate from our regret that the new theories upset our cherished beliefs. I can have little patience with those who oppose, for instance, the theory of evolution or what are called "mechanistic" explanations of the phenomena of life because of certain moral consequences which at first seem to follow from these theories, and still less with those who regard it as irrelevant or impious to ask certain questions at all. By refusing to face the facts, the conservative only weakens his own position. Frequently the conclusions which rationalist presumption draws from new scientific insights do not at all follow from them. But only by actively taking part in the elaboration of the consequences of new discoveries do we learn whether or not they fit into our world picture and, if so, how. Should our moral beliefs really prove to be dependent on factual assumptions shown to be incorrect, it would hardly be moral to defend them by refusing to acknowledge facts.
Connected with the conservative distrust if the new and the strange is its hostility to internationalism and its proneness to a strident nationalism. Here is another source of its weakness in the struggle of ideas. It cannot alter the fact that the ideas which are changing our civilization respect no boundaries. But refusal to acquaint one's self with new ideas merely deprives one of the power of effectively countering them when necessary. The growth of ideas is an international process, and only those who fully take part in the discussion will be able to exercise a significant influence. It is no real argument to say that an idea is un-American, or un-German, nor is a mistaken or vicious ideal better for having been conceived by one of our compatriots. ...
There is one respect, however, in which there is justification for saying that the liberal occupies a position midway between the socialist and the conservative: he is as far from the crude rationalism of the socialist, who wants to reconstruct all social institutions according to a pattern prescribed by his individual reason, as from the mysticism to which the conservative so frequently has to resort. What I have described as the liberal position shares with conservatism a distrust of reason to the extent that the liberal is very much aware that we do not know all the answers and that he is not sure that the answers he has are certainly the rights ones or even that we can find all the answers. He also does not disdain to seek assistance from whatever non-rational institutions or habits have proved their worth. The liberal differs from the conservative in his willingness to face this ignorance and to admit how little we know, without claiming the authority of supernatural forces of knowledge where his reason fails him. It has to be admitted that in some respects the liberal is fundamentally a skeptic - but it seems to require a certain degree of diffidence to let others seek their happiness in their own fashion and to adhere consistently to that tolerance which is an essential characteristic of liberalism.
There is no reason why this need mean an absence of religious belief on the part of the liberal. Unlike the rationalism of the French Revolution, true liberalism has no quarrel with religion, and I can only deplore the militant and essentially illiberal antireligionism which animated so much of nineteenth-century Continental liberalism. That this is not essential to liberalism is clearly shown by its English ancestors, the Old Whigs, who, if anything, were much too closely allied with a particular religious belief. What distinguishes the liberal from the conservative here is that, however profound his own spiritual beliefs, he will never regard himself as entitled to impose them on others and that for him the spiritual and the temporal are different sphere which ought not to be confused.
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