ABSTRACT
At this point we shall relinquish our position on the boundary of psychiatristic research. It is only when we have boldly followed up the notions which we have so far obtained into the realm of normal psychology, that the problem of the constitution will unroll itself to its fullest extent. With this advance into normal psychology we are not making a jump, but, as we spin out the threads which connect physique and psychic disposition, passing step by step from the psychotic through all the variants of psychopathic personality, and as, in the process, we leave farther and farther behind the serious psychic disturbances which were the point from which our investigation started, we find ourselves, unexpectedly, in the midst of healthy humanity, where no face is strange. We recognize as normal familiar manifestations those same characteristics which we came across before in a distorted form. We find the same type of face, the same physical peculiarities, and we find that behind the same external architecture dwell the same psychic impulses. The same disposition works here as the sensitive, delicate, regulative mechanism of the healthy psychic inhibitive processes, which there breaks violently through the equilibrium, rushes on to its own destruction, and ruins the whole psychic structure.
