[158] As Roswell Johnson remarks ("The Evolution of Man and its Control," _Popular Science Monthly_, January, 1910): "While it is undeniable that love when once established defies rational considerations, yet we must remark that sexual selection proceeds usually through two stages, the first being one of mere mutual attraction and interest. It is in this stage that the will and reason are operative, and here alone that any considerable elevation of standard may be effective." [159] Galton looked upon eugenics as fitted to become a factor in religion (_Essays in Eugenics_, p. 68). It may, however, be questioned whether this consummation is either probable or desirable. The same religious claim has been made for socialism. But, as Dr. Eden Paul remarks in a recent pamphlet on _Socialism and Eugenics_, "Whereas both Socialism and Eugenics are concerned solely with the application of the knowledge gained by experience to the amelioration of the human lot, it seems preferable to dispense with religious terminology, and to regard the two doctrines as complementary parts of the great modern movement known by the name of Humanism." Personally, I do not consider that either Socialism or Eugenics can be regarded as coming within the legitimate sphere of religion, which I have elsewhere attempted to define (Conclusion to _The New Spirit_). [160] J. Grasset, in Dr. A. Marie's _Traite International de Psychologie Pathologique_, 1910, Vol. I, p. 25. Grasset proceeds to discuss the principles which must guide the physician in such consultations. [161] This has been clearly realized by the German Society of Eugenics or "Racial Hygiene," as it is usually termed in Germany (Internationale Gesellschaft fuer Rassen-Hygiene), founded by Dr. Alfred Ploetz, with the co-operation of many distinguished physicians and men of science, "to further the theory and practice of racial hygiene." It is a chief aim of this Society to encourage the registration by the members of the biological and other physical and psychic characteristics of themselves and their families, in order to obtain a body of data on which conclusions may eventually be based; the members undertake not to enter on a marriage except they are assured by medical investigation of both parties that the union is not likely to cause disaster to either partner or to the offspring. The Society also admits associates who only occupy themselves with the scientific aspects of its work and with propaganda. In England the Eugenics Education Society (with its organ the _Eugenics Review_) has done much to stimulate an intelligent interest in eugenics.