The instrumental case for truth is the instrumental case for human institutions in general — ultimately knowledge costs, which is to say, the unattainability of omniscience. Courts are preferred to lynch mobs even when it is known to a certainty in the particular case that the accused is guilty, and even if the lynch mob inflicts exactly the same punishment that the court would have inflicted. The philosophic principle that we “should not take the law into our own hands” can be viewed instrumentally as the statement that, however great our certainty in the particular case, we cannot supplant legal institutions as cost-saving devices because we cannot assume equal certainty in future cases. If we
Totalitarian institutions would be a contradiction in terms, if the central assumption of omnicompetence were universalistic. But totalitarian movements and institutions are based on a belief in
The instrumental case for truthfulness rests ultimately on the same assumption as the instrumental case for human institutions in general, and for free institutions in particular. That assumption is that, because we cannot know all the ramifications of whatever we say or do, we must put our faith in certain general or systemic processes (morality, constitutions, the family, etc.), whose authentication by social experience over the centuries is more substantial than any particular individual revelation or articulation. This is not to say that no social processes should be changed or even abandoned. On the contrary, their history has been largely a history of change — usually based on social experience, even when marked by individual revelation or articulation. What is at issue is:
The social and political differences between the United States today and two centuries ago are staggering, though all within the same general legal and moral framework. Totalitarian governments can make more rapid changes of personnel (“purges”) and policies (the Nazi-Soviet pact, changes in Sino-Soviet relations, etc.) as of a given time, but the fixed purposes of all such changes may mean less fundamental social and political change within the country than in a democratic or conventionally autocratic system. Certainly it would be difficult to argue that the Soviet Union today is as socially and politically different from the Soviet Union fifty years ago as is the contemporary United States from what it was half a century ago. The change in the status of the American black population alone has been dramatic, in addition to changes in the role of government in the economy and society, and countless shifts in the balance of social and political power among a variety of regional, economic, and philosophic groups.