"And the little screaming fact that sounds throughout all history: repression only seeks to strengthen and knit the repressed. The great owners ignored the three cries of history. The land fell into fewer hands, the number of dispossessed increased, and every effort of the great owners was directed at repression."
from Chapter 19 (yes, it's from the future, but it's worth hearing now).
"It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change." ~Charles Darwin
This inter-chapter and the celebration of music in the Hoovervilles reminds me of the Woody Guthrie story: