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

The course of human history is determined, not by what happens in the skies, but what takes place in our hearts.

Evolution is unproved and unprovable. We believe it only because the only alternative is special creation, and that is unthinkable.

No tribe unites with another of its own free will.

Tolerance is held to be a condition of mind which is encouraged by, and is necessary for, civilization.

The discovery of agriculture was the first big step toward a civilized life.

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