Civilization never stands still; if in one country it is falling back, in another it is changing, evolving, becoming more complicated, bringing fresh experience to body and mind, breeding new desires, and exploiting Nature's cupboard for their satisfaction.

No tribe unites with another of its own free will.

I am a rank individualist.

Good men, whether they be Christians or rationalists, do not desire to discriminate between races, but the distinctions implanted by Nature are too conspicuous to escape the observation of our senses.

Man is by nature competitive, combative, ambitious, jealous, envious, and vengeful.

It is just because civilization is ever evolving, changing, and becoming more complicated, that experts find it so difficult to define it in explicit terms.

Human nature, as manifested in tribalism and nationalism, provides the momentum of the machinery of human evolution.