I have never seen a human being who more perfectly represented the modern conception of a robot.

The reserve of modern assertions is sometimes pushed to extremes, in which the fear of being contradicted leads the writer to strip himself of almost all sense and meaning.

I must place on record my regret that the human race ever learned to fly.

Courage is the first of human qualities because it is the quality which guarantees the others.

Courage is rightly esteemed the first of human qualities... because it is the quality which guarantees all others.

If the human race wishes to have a prolonged and indefinite period of material prosperity, they have only got to behave in a peaceful and helpful way toward one another