There are persons whose existence is little more than a series of zigzags, as now one tendency and now another gets the upper hand. Their spirit wars with their flesh, they wish for incompatibles, wayward impulses interrupt their most deliberate plans, and their lives are one long drama of repentance and of effort to repair misdemeanors and mistakes.
Heterogeneous personality has been explained as the result of inheritance—the traits of character of incompatible and antagonistic ancestors are supposed to be preserved alongside of each other. This explanation may pass for what it is worth—it certainly needs corroboration. But whatever the cause of heterogeneous personality may be, we find the extreme examples of it in the psychopathic temperament, of which I spoke in my first lecture. All writers about that temperament make the inner heterogeneity prominent in their descriptions. Frequently, indeed, it is only this trait that leads us to ascribe that temperament to a man at all. A dégénéré supérieur is simply a man of sensibility in many directions, who finds more difficulty than is common in keeping his spiritual house in order and running his furrow straight, because his feelings and impulses are too keen and too discrepant mutually. In the haunting and insistent ideas, in the irrational impulses, the morbid scruples, dreads, and inhibitions which beset the psychopathic temperament when it is thoroughly pronounced, we have exquisite examples of heterogeneous personality. Bunyan had an obsession of the words, “Sell Christ for this, sell him for that, sell him, sell him!” which would run through his mind a hundred times together, until one day out of breath with retorting, “I will not, I will not,” he impulsively said, “Let him go if he will,” and this loss of the battle kept him in despair for over a year. The lives of the saints are full of such blasphemous obsessions, ascribed invariably to the direct agency of Satan. The phenomenon connects itself with the life of the subconscious self, so-called, of which we must erelong speak more directly.