Vienna, September, 1932
Dear Professor Einstein,
When I learned of your intention to invite me to a mutual exchange of views upon a subject which not only interested you personally but seemed deserving, too, of public interest, I cordially assented. I expected you to choose a problem lying on the borderland of the knowable, as it stands today, a theme which each of us, physicist and psychologist, might approach from his own angle, to meet at last on common ground, though setting out from different premises. Thus the question which you put me—what is to be done to rid mankind of the war-menace?—took me by surprise. And, next, I was dumbfounded by the thought of my (of our, I almost wrote) incompetence; for this struck me as being a matter of practical politics, the statesman’s proper study. But then I realized that you did not raise the question in your capacity as scientist or physicist, but as a lover of his fellow men, who responded to the call of the League of Nations much as Fridtjof Nansen, the Polar explorer, took on himself the task of succouring homeless and starving victims of the World War. And, next, I reminded myself that I was not being called on to formulate practical proposals, but, rather, to explain how this question of preventing wars strikes a psychologist.
But here, too, you have stated the gist of the matter in your letter—and taken the wind out of my sails! Still, I will gladly follow in your wake and content myself with endorsing your conclusions, which, however, I propose to amplify to the best of my knowledge or surmise.
You begin with the relations between Might and Right, and this is assuredly the proper starting-point for our enquiry. But, for the term “might,” I would substitute a tougher and more telling word: “violence.” In right and violence we have today an obvious antinomy. It is easy to prove that one has evolved from the other and, when we go back to origins and examine primitive conditions, the solution of the problem follows easily enough. I must crave your indulgence if in what follows I speak of well-known, admitted facts as though they were new data; the context necessitates this method.
Conflicts of interest between people are resolved, in principle, by recourse to violence. It is the same in the animal kingdom, from which humanity cannot claim exclusion; nevertheless people are also prone to conflicts of opinion, touching, on occasion, the loftiest peaks of abstract thought, which seem to call for settlement by quite another method. This refinement is, however, a late development. To start with, brute force was the factor which, in small communities, decided points of ownership and the question of whose will was to prevail. Very soon physical force was implemented, then replaced, by the use of various adjuncts; he proved the victor whose weapon was the better, or handled the more skilfully. Now, for the first time, with the coming of weapons, superior brains began to oust brute force, but the object of the conflict remained the same: one party was to be constrained, by injury or impairment of strength, to retract a claim or a refusal. This end is most effectively gained when the opponent is definitively put out of action—in other words, is killed. This procedure has two advantages; the enemy cannot renew hostilities, and, secondly, this fate deters others from following the example. Moreover, the slaughter of a foe gratifies an instinctive craving—a point to which we shall revert hereafter. However, another consideration may be set off against this will to kill: the possibility of using enemies for servile tasks if their spirits be broken and their lives spared. Here violence finds an outlet not in slaughter but in subjugation. Hence springs the practice of showing mercy; but the victor, having from now on to reckon with the craving for revenge that rankles in the victim, forfeits some personal security.
Thus, under primitive conditions, it is superior force—brute violence, or violence backed by arms—that lords it everywhere. We know that in the course of evolution this state of things was modified, a path was traced that led away from violence to law. But what was this path? Surely it issued from a single verity; that the superiority of one strong man can be overborne by an alliance of many weaklings, that l’union fait la force. Brute force is overcome by union, the allied might of scattered units makes good its right against the isolated giant. Thus we may define “right” (i.e. law) as the might of a community. Yet it, too, is nothing else than violence, quick to attack whatever individual stands in its path, and it employs the self-same methods, follows like ends, with but one difference; it is the communal, not individual, violence that has its way. But, for the transition from crude violence to the reign of law, a certain psychological condition must first obtain. The union of the majority must be stable and enduring. If its sole raison d’être be to fight some powerful individual, after whose downfall it would be dissolved, it leads to nothing. Someone else trusting to superior power, will seek to reinstate the rule of violence and the cycle will repeat itself unendingly. Thus, the union of the people must be permanent and well organized; it must enact rules to meet the risk of possible revolts; must set up machinery ensuring that its rules—the laws—are observed and that such acts of violence as the laws demand are duly carried out. This recognition of a community of interests engenders among the members of the group a sentiment of unity and fraternal solidarity which constitutes its real strength.