Measured in time of transport and communication, the whole round globe is now smaller than a small European country was a hundred years ago.

Nearly every country in the world is now becoming industrialized as rapidly as it can.

The history of our civilization has been one of intermittent war.

The real evil of the Russian communist state is not communism. It is the secret police and the concentration camp.

Knowledge acquired in biological research is seldom directly applicable to human beings ... The results of scientific research, obtained under these conditions, cannot be applied directly to human beings who vary widely in their hereditary make-up, in their environment, and in their past health record.

Our civilization has evolved through the continuous adjustment of society to the stimulus of new knowledge.

Some wars have been due to the lust of rulers for power and glory, or to revenge to wipe out the humiliation of a former defeat.