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Rh valley of the Seine, but it is no more puzzling than the fact that the valley of the Thames was miserably backward as compared with the banks of the Tiber. Climate, human contact, facilities of communication and what we call accident, have played a great part in the rise of culture among nations: to ignore these and assert dogmatically that the present distribution of culture is a fair index of the distribution of human ability and desert, is to make an assertion for which there is not the slightest scientific warrant.

What the age of Darwin has done is to add to the eighteenth century idea of individual worth the complementary idea of physical immortality. And this, far from annulling or contracting the idea of human freedom, rather emphasizes its necessity and eternal possibility—the boundlessness and endlessness of human achievement. Freedom has come to mean not individual caprice or aberration, but social self-realization in an endless chain of selves; and freedom for such development is not the denial but the central assertion of the evolutionary theory. So, too, the doctrine of human equality passes through the fire of scientific inquiry, not obliterated but transfigured: not equality of present attainment but equality of opportunity, for unbounded future attainment is the rightful demand of mankind.

What now does the present hegemony of the white races threaten? It threatens by means of brute force a survival of some of the worst stocks of