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.

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

In every man there is an instinctive and passionate reaction if his person or liberty is attacked.

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

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.

A drunkard is one thing, and a temperate man is quite another.

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.