Gerrit L. Lansing, Popular Science Monthly (1882)
“ If our institutions and governmental principles are worthy of preservation, they must be protected from a people who represent in all the instincts of their nature different feelings and forms. If we ignore the plain teachings of history upon the effect of the mingling of societies composed of different races, or having different civilizations, and, as is commonly the case with individuals, will learn only from our own experience, the experience is likely to come too late for us to profit by it. The permanence of a civilization and of a nation depends upon their homogeneity. ”
