Scientific research into the functioning of the ductless glands and their secretions throws a new light on this problem. Not long ago these glands were a complete enigma, owing to the fact that they are not provided with excretory ducts. It has just recently been shown that these organs, such as the thyroid, the pituitary, the suprarenal, the parathyroid and the reproductive glands, exercise an all-powerful influence upon the course of individual development or deficiency. Gley, to whom we owe much of our knowledge of glandular action, has asserted that "the genesis and exercise of the higher faculties of men are conditioned by the purely chemical action of the product of these secretions. Let psychologists consider these facts."
These internal secretions or endocrines pass directly into the blood stream, and exercise a dominating power over health and personality. Deficiency in the thyroid secretion, especially during the years of infancy and early childhood, creates disorders of nutrition and inactivity of the nervous system. The particular form of idiocy known as cretinism is the result of this deficiency, which produces an arrest of the development of the brain cells. The other glands and their secretions likewise exercise the most profound influence upon development, growth and assimilation. Most of these glands are of very small size, none of them larger than a walnut, and some—the parathyroids—almost microscopic. Nevertheless, they are essential to the proper maintenance of life in the body, and no less organically related to mental and psychic development as well.
The reproductive glands, it should not be forgotten, belong to this group, and besides their ordinary products, the germ and sperm cells (ova and spermatozoa) form HORMONES which circulate in the blood and effect changes in the cells of distant parts of the body. Through these HORMONES the secondary sexual characters are produced, including the many differences in the form and structure of the body which are the characteristics of the sexes. Only in recent years has science discovered that these secondary sexual characters are brought about by the agency of these internal secretions or hormones, passed from the reproductive glands into the circulating blood. These so-called secondary characters which are the sign of full and healthy development, are dependent, science tells us, upon the state of development of the reproductive organs.
For a clear and illuminating account of the creative and dynamic power of the endocrine glands, the layman is referred to a recently published book by Dr. Louis Berman.(2) This authority reveals anew how body and soul are bound up together in a complex unity. Our spiritual and psychic difficulties cannot be solved until we have mastered the knowledge of the wellsprings of our being. "The chemistry of the soul! Magnificent phrase!" exclaims Dr. Berman. "It's a long, long way to that goal. The exact formula is as yet far beyond our reach. But we have started upon the long journey, and we shall get there.
"The internal secretions constitute and determine much of the inherited powers of the individual and their development. They control physical and mental growth, and all the metabolic processes of fundamental importance. They dominate all the vital functions of man during the three cycles of life. They cooperate in an intimate relationship which may be compared to an interlocking directorate. A derangement of their functions, causing an insufficiency of them, an excess, or an abnormality, upsets the entire equilibrium of the body, with transforming effects upon the mind and the organs. In short, they control human nature, and whoever controls them, controls human nature....
"Blood chemistry of our time is a marvel, undreamed of a generation ago. Also, these achievements are a perfect example of the accomplished fact contradicting a prior prediction and criticism. For it was one of the accepted dogmas of the nineteenth century that the phenomena of living could never be subjected to accurate quantitative analysis." But the ethical dogmas of the past, no less than the scientific, may block the way to true civilization.
Physiologically as well as psychologically the development of the human being, the sane mind in the sound body, is absolutely dependent upon the functioning and exercise of all the organs in the body. The "moralists" who preach abstinence, self-denial, and suppression are relegated by these findings of impartial and disinterested science to the class of those educators of the past who taught that it was improper for young ladies to indulge in sports and athletics and who produced generations of feeble, undeveloped invalids, bound up by stays and addicted to swooning and hysterics. One need only go out on the street of any American city to-day to be confronted with the victims of the cruel morality of self-denial and "sin." This fiendish "morality" is stamped upon those emaciated bodies, indelibly written in those emasculated, underdeveloped, undernourished figures of men and women, in the nervous tension and unrelaxed muscles denoting the ceaseless vigilance in restraining and suppressing the expression of natural impulses.
Birth Control is no negative philosophy concerned solely with the number of children brought into this world. It is not merely a question of population. Primarily it is the instrument of liberation and of human development.
It points the way to a morality in which sexual expression and human development will not be in conflict with the interest and well-being of the race nor of contemporary society at large. Not only is it the most effective, in fact the only lever by which the value of the child can be raised to a civilized point; but it is likewise the only method by which the life of the individual can be deepened and strengthened, by which an inner peace and security and beauty may be substituted for the inner conflict that is at present so fatal to self-expression and self-realization.
Sublimation of the sexual instinct cannot take place by denying it expression, nor by reducing it to the plane of the purely physiological. Sexual experience, to be of contributory value, must be integrated and assimilated. Asceticism defeats its own purpose because it develops the obsession of licentious and obscene thoughts, the victim alternating between temporary victory over "sin" and the remorse of defeat. But the seeker of purely physical pleasure, the libertine or the average sensualist, is no less a pathological case, living as one-sided and unbalanced a life as the ascetic, for his conduct is likewise based on ignorance and lack of understanding. In seeking pleasure without the exercise of responsibility, in trying to get something for nothing, he is not merely cheating others but himself as well.