80:9.16

This European culture for five thousand years continued to grow and to some extent intermingle. But the barrier of language prevented the full reciprocation of the various Occidental nations. During the past century this culture has been experiencing its best opportunity for blending in the cosmopolitan population of North America; and the future of that continent will be determined by the quality of the racial factors which are permitted to enter into its present and future populations, as well as by the level of the social culture which is maintained.