My theory appears to me quite incontrovertible and conclusive, and to afford a complete explanation of the entire set of phenomena. The exposition, however, must now face a set of facts which appear quite opposed to it, and which seem absolutely to contradict my reference of sexual inversion to the existence of sexually intermediate types, and my explanation of the law governing the attraction of these types for each other. It is probably the case that my explanation is sufficient for all female sexual inverts, but it is certainly true that there are men with very little taint of femaleness about them who yet exert a very strong influence on members of their own sex, a stronger influence than that of other men who may have more femaleness—an influence which can be exerted even on very male men, and an influence which, finally, often appears to be much greater than the influence any woman can exert on these men. Albert Moll is justified in saying as follows: “There exist psycho-sexual hermaphrodites who are attracted by members of both sexes, but who in the case of each sex appear to care only for the characters peculiar to that sex; and, on the other hand, there are also psycho-sexual (?) hermaphrodites who, in the case of each sex, are attracted, not by the characteristics peculiar to that sex, but by those which are either sexually indifferent or even antagonistic to the sex in question.” Upon this distinction depends the difference between the two sets of phenomena indicated in the title of this chapter—Homo-sexuality and Pederasty. The distinction may be expressed as follows: The homo-sexualist is that type of sexual invert who prefers very female men or very male women, in accordance with the general law of sexual attraction. The pederast, on the other hand, may be attracted either by very male men or by very female women, but in the latter case only in so far as he is not pederastic. Moreover, his inclination for the male sex is stronger than for the female sex, and is more deeply seated in his nature. The origin of pederasty is a problem in itself and remains unsolved by this investigation.


CHAPTER V
THE SCIENCE OF CHARACTER AND THE SCIENCE OF FORM

In view of the admitted close correspondence between matter and mind, we may expect to find that the conception of sexually intermediate forms, if applied to mental facts, will yield a rich crop of results. The existence of a female mental type and a male mental type can readily be imagined (and the quest of these types has been made by many investigators), but such perfect types never occur as actual individuals, simply because in the mind, as in the body, all sorts of sexually intermediate conditions exist. My conception will also be of great service in helping us to discriminate between the different mental qualities, and to throw some light into what has always been a dark corner for psychologists—the differences between different individuals. A great step will be made if we are able to supply graded categories for the mental diathesis of individuals; if it shall cease to be scientific to say that the character of an individual is merely male or female; but if we can make a measured judgment and say that such and such an one is so many parts male and so many parts female. Which element in any particular individual has done, said, or thought this or the other? By making the answer to such a question possible, we shall have done much towards the definite description of the individual, and the new method will determine the direction of future investigation. The knowledge of the past, which set out from conceptions which were really confused averages, has been equally far from reaching the broadest truths as from searching out the most intimate detailed knowledge. This failure of past methods gives us hope that the principle of sexually intermediate forms may serve as the foundation of a scientific study of character and justifies the attempt to make of it an illuminating principle for the psychology of individual differences. Its application to the science of character, which, so far, has been in the hands of merely literary authors, and is from the scientific point of view an untouched field, is to be greeted more warmly as it is capable of being used quantitatively, so that we venture to estimate the percentage of maleness and femaleness which an individual possesses even in the mental qualities. The answer to this question is not given even if we know the exact anatomical position of an organism on the scale stretching from male to female, although as a matter of fact congruity between bodily and mental sexuality is more common than incongruity. But we must remember what was stated in chap. ii. as to the uneven distribution of sexuality over the body.

The proportion of the male to the female principle in the same human being must not be assumed to be a constant quantity. An important new conclusion must be taken into account, a conclusion which is necessary to the right application of the principle which clears up in a striking fashion earlier psychological work. The fact is that every human being varies or oscillates between the maleness and the femaleness of his constitution. In some cases these oscillations are abnormally large, in other cases so small as to escape observation, but they are always present, and when they are great they may even reveal themselves in the outward aspect of the body. Like the variations in the magnetism of the earth, these sexual oscillations are either regular or irregular. The regular forms are sometimes minute; for instance, many men feel more male at night. The large and regular oscillations correspond to the great divisions of organic life to which attention is only now being directed, and they may throw light upon many puzzling phenomena. The irregular oscillations probably depend chiefly upon the environment, as for instance on the sexuality of surrounding human beings. They may help to explain some curious points in the psychology of a crowd which have not yet received sufficient attention.

In short, bi-sexuality cannot be properly observed in a single moment, but must be studied through successive periods of time. This time-element in psychological differences of sexuality may be regularly periodic or not. The swing towards one pole of sexuality may be greater than the following swing to the other side. Although theoretically possible, it seems to be extremely rare for the swing to the male side to be exactly equal to the swing towards the female side.

It may be admitted in principle, before proceeding to detailed investigation, that the conception of sexually intermediate forms makes possible a more accurate description of individual characters in so far as it aids in determining the proportion of male and female in each individual, and of measuring the oscillations to each side of which any individual is capable. A point of method must be decided at once, as upon it depends the course the investigation will pursue. Are we to begin by an empirical investigation of the almost innumerable intermediate conditions in mental sexuality, or are we to set out with the abstract sexual types, the ideal psychological man and woman, and then investigate deductively how far such ideal pictures correspond with concrete cases? The former method is that which the development of psychological knowledge has pursued; ideals have been derived from facts, sexual types constructed from observation of the manifold complexity of nature; it would be inductive and analytic. The latter mode, deductive and synthetic, is more in accordance with formal logic.

I have been unwilling to pursue the second method as fully as is possible, because every one can apply for himself to concrete facts the two well-defined extreme types; once it is understood that actual individuals are mixtures of the types, it is simple to apply theory to practice, and the actual pursuit of detailed cases would involve much repetition and bring little theoretical advantage. The second method, however, is impracticable. The collection of the long series of details from which the inductions would be made would simply weary the reader.

In the first or biological part of my work, I give little attention to the extreme types, but devote myself to the fullest investigation of the intermediate stages. In the second part, I shall endeavour to make as full a psychological analysis as possible of the characters of the male and female types, and will touch only lightly on concrete instances.

I shall first mention, without laying too much stress on them, some of the more obvious mental characteristics of the intermediate conditions.