Practicing History_ Selected Essays - Barbara W. Tuchman [141]
We must keep a balance, and I know of no better prescription than a phrase from Condorcet’s eulogy on the death of Benjamin Franklin: “He pardoned the present for the sake of the future.”
Jefferson Lecture, Washington, D.C., April 1980. American Scholar, Autumn 1980.
III
LEARNING
FROM
HISTORY
Is History a Guide to the Future?
The commonest question asked of historians by laymen is whether history serves a purpose. Is it useful? Can we learn from the lessons of history?
When people want history to be utilitarian and teach us lessons, that means they also want to be sure that it meets scientific standards. This, in my opinion, it cannot do, for reasons which I will come to in a moment. To practice history as a science is sociology, an altogether different discipline which I personally find antipathetic—although I suppose the sociologists would consider that my deficiency rather than theirs. The sociologists plod along with their noses to the ground assembling masses of statistics in order to arrive at some obvious conclusion which a reasonably perceptive historian, not to mention a large part of the general public, knows anyway, simply from observation—that social mobility is increasing, for instance, or that women have different problems from men. One wishes they would just cut loose someday, lift up their heads, and look at the world around them.
If history were a science, we should be able to get a grip on her, learn her ways, establish her patterns, know what will happen tomorrow. Why is it that we cannot? The answer lies in what I call the Unknowable Variable—namely, man. Human beings are always and finally the subject of history. History is the record of human behavior, the most fascinating subject of all, but illogical and so crammed with an unlimited number of variables that it is not susceptible of the scientific method nor of systematizng.
I say this bravely, even in the midst of the electronic age when computers are already chewing at the skirts of history in the process called Quantification. Applied to history, quantification, I believe, has its limits. It depends on a method called “data manipulation,” which means that the facts, or data, of the historical past—that is, of human behavior—are manipulated into named categories so that they can be programmed into computers. Out comes—hopefully—a pattern. I can only tell you that for history “data manipulation” is a built-in invalidator, because to the degree that you manipulate your data to suit some extraneous requirement, in this case the requirements of the machine, to that degree your results will be suspect—and run the risk of being invalid. Everything depends on the naming of the categories and the assigning of facts to them, and this depends on the quantifier’s individual judgment at the very base of the process. The categories are not revealed doctrine nor are the results scientific truth.
The hope for quantification, presumably, is that by processing a vast quantity of material