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

There are the further difficulties of building a population out of a diversity of races, each at a different stage of cultural evolution, some in need of restraint, many in need of protection; everywhere a bewildering Babel of tongues.

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

Tribal life comes automatically to an end when a primitive people begins to live in a town or a city, for sooner or later a tribal organization is found to be incompatible with life in a city.

As long as man remains an inquiring animal, there can never be a complete unanimity in our fundamental beliefs. The more diverse our paths, the greater is likely to be the divergence of beliefs.

I prize the conditions under which I have lived because they have permitted me to choose my opportunities, to inquire into such matters as interested me, and to publish what I believed to be true, uncontrolled by any central authority.

Universalism as an ideal is as old as nay, is probably much more ancient than the Christian ideal.