Science has produced such powerful weapons that in a war between great powers there would be neither victor nor vanquished. Both would be overwhelmed in destruction.

We are now physically, politically, and economically one world and nations so interdependent that the absolute national sovereignty of nations is no longer possible.

Empires won by conquest have always fallen either by revolt within or by defeat by a rival.

Some think the worst horrors of war might be avoided by an international agreement not to use atomic bombs. This is a vain hope.

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

The increase of territory and power of empires by force of arms has been the policy of all great powers, and it has always been possible to get the approval of their state religion.

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.