Pope Paul VI
Populorum Progressio §9
Populorum Progressio: On the Development of Peoples
9 At the same time, social unrest has gradually spread throughout the world. The acute restlessness engulfing the poorer classes in countries that are now being industrialized has spread to other regions where agriculture is the mainstay of the economy. The farmer is painfully aware of his "wretched lot." (9) Then there are the flagrant inequalities not merely in the enjoyment of possessions, but even more in the exercise of power. In certain regions a privileged minority enjoys the refinements of life, while the rest of the inhabitants, impoverished and disunited, "are deprived of almost all possibility of acting on their own initiative and responsibility, and often subsist in living and working conditions unworthy of the human person." (10) Cultural Conflicts
Source: Populorum Progressio (Vatican.va)