In the last fifty years science has advanced more than in the 2,000 previous years and given mankind greater powers over the forces of nature than the ancients ascribed to their gods.

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

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

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.

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

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

When the Industrial Revolution of the nineteenth century brought a rapid increase in wealth, the demand of workers for a fair share of the wealth they were creating was conceded only after riots and strikes.