though it is based fundamentally on sound reasoning from facts of biology.
The great value of religion in this connection is that it provides a driving power,71 a source of action, which the intellect alone can rarely furnish. Reason itself is usually an inhibitor of action. It is the emotions that impel one to do things. The utilization of the emotions in affecting conduct is by no means always a part of religion, yet it is the essence of religion. Without abandoning the appeal to reason, eugenists must make every effort to enlist potent emotional forces on their side. There is none so strong and available as religion, and the eugenist may turn to it with confidence of finding an effective ally, if he can once gain its sanction.
The task, as this chapter was intended to show, is a complex one, yet we see no insuperable obstacles to it. Eugenics may not become a part of the Christian religion, as a whole, until scientific education is much more widespread than at present, but it is not too soon to make a start, by identifying the interests of the two wherever such identification is justified and profitable.
We have endeavored to point out that as a race rises, and instinct becomes less important in guiding the conduct of its members, religion has often put a restraint on reason, guiding the individual in racially profitable paths. What is to happen when religion gives way? Unbridled selfishness too often takes the reins, and the interests of the species are disregarded. Religion, therefore, appears to be a necessity for the perpetuation of any race. It is essential to racial welfare that the national religion should be of such a character as to appeal to the emotions effectively and yet conciliate the reason. We believe that