Producer's Surplus is a convenient name for the genus of which the rent of land is the leading species.

Again, most of the chief distinctions marked by economic terms are differences not of kind but of degree.

Though a simple book can be written on selected topics, the central doctrines of economics are not simple and cannot be made so.

In every age poets and social reformers have tried to stimulate the people of their own time to a nobler life by enchanting stories of the virtues of the heroes of old.

Material goods consist of useful material things, and of all rights to hold, or use, or derive benefits from material things, or to receive them at a future time.

The most reckless and treacherous of all theorists is he who professes to let facts and figures speak for themselves.

Slavery was regarded by Aristotle as an ordinance of nature, and so probably was it by the slaves themselves in olden time.