Before the discovery of agriculture mankind was everywhere so divided, the size of each group being determined by the natural fertility of its locality.

Whichever theory we adopt to give a rational explanation of human existence, that theory must take into account and explain the mental nature we see at work in all modern communities.

Christianity has not conquered nationalism; the opposite has been the case nationalism has made Christianity its footstool.

The German Fuhrer, as I have consistently maintained, is an evolutionist; he has consistently sought to make the practices of Germany conform to the theory of evolution.

No tribe unites with another of its own free will.

Before the discovery of agriculture mankind was everywhere so divided, the size of each group being determined by the natural fertility of its locality.

Reason has not tamed desire: it is as strong as ever.