The last sentences -- page 564 - of the book are as follows:
It takes almost mysticism to see that out of this bleeding chaos a dancing star will be born. Americans are strengthened in this mysticism by returning to the words of one of their major prophets, Walt Whitman:
I like it.O days of the future I believe in you -I isolate myself for your sake,O America, because you build for mankind I build for you,O well-beloved stone-cutter, I lead them who plan with decision and science,Lead the present with friendly hand toward the future.