The central theme of this paper is the character and causes of long-term changes in the personal distribution of income. Does inequality in the distr… - Simon Kuznets

The rural and urban populations does not necessarily drift downward in the process of economic growth: indeed, there is some evidence to suggest that it is stable at best, and tends to widen because per capita productivity in urban pursuits increases more rapidly than in agriculture.

[The principal characteristic of this economic epoch is] a sustained increase in per capita or per worker product, most often accompanied by an increase in population and usually sweeping structural changes.

we need far more empirical study than we have had so far of the universe of inventors; any finding concerning inventors... would be of great value... for public policy in regard to inventive activity.