Scientific understanding is our joy. Economic and political understanding is our duty.

This is a fight between a free world and a slave world.

Until democracy in effective enthusiastic action fills the vacuum created by the power of modern inventions, we may expect the fascists to increase in power after the war both in the United States and in the world.

The European brand of fascism will probably present its most serious postwar threat to us via Latin America.

There are probably several hundred thousand if we narrow the definition to include only those who in their search for money and power are ruthless and deceitful.

If this liberal potential is properly channeled, we may expect the area of freedom of the United States to increase. The problem is to spend up our rate of social invention in the service of the welfare of all the people.

What we must understand is that the industries, processes, and inventions created by modern science can be used either to subjugate or liberate. The choice is up to us.