This prognostication would be very plausible, if we supposed eugenics to be introduced into the social structure from above, privily, and in small doses, and by way of administrative order, as under the existing Acts to check the spread of feeble-mindedness. But this method would be impracticable. It would not generate anything like the social momentum necessary to carry through any radical reform. To make it effective, it would have to be backed by a powerful, enthusiastic, and intelligent public sentiment. This presupposes that the public has been biologically educated to appreciate the actual situation, and has been thoroughly wrought up about the fatuity of our social order, and understands what is wrong with it. If it understands that much, it can also be made to see that it is fantastic to expect to leap to the Ideal State by a social revolution. No one now knows what the institutions of an Ideal State would be like, nor how they would work. We only know that they will have to be evolved out of our present institutions, even as the Superman has to be evolved out of the primitive Yahoo. In either case, the process will be gradual, and its success will depend upon details, on taking one step after another at the right rate in the right direction, making a new adjustment here, overcoming an old difficulty there, removing obstacles, smoothing over the shell-holes and scars dating from Man’s lurid past, and, in general, feeling one’s way systematically and scientifically to better things. Such a mode of progression may seem unheroic, but it has the great advantage that it is unlikely to go irretrievably wrong. If we know from the outset that we are tentatively feeling our way, we shall always be on the look out for traps and possibilities of going astray, trying out the value of our policies by their results, and willing to retrace our steps when we have made a false one.