The choice, however, is as clear now for nations as it was once for the individual: peace or extinction.

The grim fact is that we prepare for war like precocious giants, and for peace like retarded pygmies.

And I have lived since - as you have - in a period of cold war, during which we have ensured by our achievements in the science and technology of destruction that a third act in this tragedy of war will result in the peace of extinction.

Today the predatory state, or the predatory group of states, with power of total destruction, is no more to be tolerated than the predatory individual.

As to the first, I do not know that I have done very much myself to promote fraternity between nations but I do know that there can be no more important purpose for any man's activity or interests.

A great gulf, however, has been opened between man's material advance and his social and moral progress, a gulf in which he may one day be lost if it is not closed or narrowed.