The business of eugenics or race-culture, then, is to create an environment such that those characters which we desire as moral and intelligent beings shall be endowed with the highest possible survival-value, as against those which ally so many men with the microbe and the tapeworm. There are those who live in society to-day, and reproduce their like, in virtue of the poisons they produce, in virtue of their tenacious hooks and voracious stomachs. If society be organised so that these are factors of more survival-value than the disinterested search for truth, or mother-love, or the power to create great poetry or music--then, according to the inevitable and universal law of the survival of the fittest, our parasites will oust our poets and our poisoners our philosophers. These things have happened and may happen again at any time. It does not matter that the good thing, in virtue of survival-value then superior, has been evolved. Nature never gives a final verdict in favour of good or bad but only and always in favour of the fit. Let the conditions change, so that rapacity fits them better than righteousness, or--as in a completely “collectivist” state--vegetableness rather than virility, and the thing we call high will go under before the thing we call low. Nature recognises neither high nor low but only fitness or value for life in the conditions that actually obtain. These laws enthroned and dethroned the civilisations of the past: they have enthroned and may dethrone us. But this end is not inevitable, since man--and this is his great character--not merely reacts to his environment, as all creatures must, but can create and recreate it. The business of eugenics or race-culture is to create an environment such that the human characters of which the human spirit approves shall in it outweigh those of which we disapprove. Make it fittest to be best and the best will win--not because it is the best, but because it is the fittest: had the worst been the fittest it would have won. In society to-day both forms of the process may be observed. The balance between them determines its destiny. It is the business of eugenics to throw the whole weight of human purpose into the scale of the good.