Conflicting economic interest is relatively unimportant as a cause of war.

The probability of the people in power being individuals who would dislike the possession and exercise of power is on a level with the probability that an extremely tender-hearted person would get the job of whipping-master in a slave plantation.

...even professors of economics, to say nothing of the public, do not generally have scientific minds.

All science is static in the sense that it describes the unchanging aspects of things.

The truth seems . . . to be that in the ultimate and essential problem the economic factor is relatively superficial and unimportant.

Always history is being made; opinions attitudes and institutions change, and there is evolution in the nature of capitalism

Costs merely register competing attractions.