Conditions which at first sight give rise to no suspicion of being acquired injuries to the mind, when they are looked at in the light of the facts we have been considering, reveal themselves as being scars inflicted by conflict as certainly as are some {58} forms of insanity. Characteristics which pass as vices, eccentricities, defects of temper, peculiarities of disposition, come when critically examined to be explicable as minor grades of defective mental stability, although, on account of their great frequency, they have been looked upon as normal, or at any rate in the natural order of things.
Few examples could be found to illustrate better such conditions than alcoholism. Almost universally regarded as either, on the one hand, a sin or vice, or on the other hand, as a disease, there can be little doubt that in fact it is essentially a response to a psychological necessity. In the tragic conflict between what he has been taught to desire and what he is allowed to get, man has found in alcohol, as he has found in certain other drugs, a sinister but effective peacemaker, a means of securing, for however short a time, some way out of the prison house of reality back to the Golden Age. There can be equally little doubt that it is but a comparatively small proportion of the victims of conflict who find a solace in alcohol, and the prevalence of alcoholism and the punishments entailed by the use of that dreadful remedy cannot fail to impress upon us how great must be the number of those whose need was just as great, but who were too ignorant, too cowardly, or perhaps too brave to find a release there.
We have seen that mental instability must be regarded as a condition extremely common, and produced by the mental conflict forced upon man by his sensitiveness to herd suggestion on the one hand and to experience on the other. It remains for us to estimate in some rough way the characteristics of the unstable, in order that we may be able to judge of their value or otherwise to the State and the species. Such an estimate must necessarily be exaggerated, over-sharp in its outlines, omitting {59}