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

And very often the influence exerted on a person's character by the amount of his income is hardly less, if it is less, than that exerted by the way in which it is earned.

Civilized countries generally adopt gold or silver or both as money.

In the absence of any short term in common use to represent all desirable things, or things that satisfy human wants, we may use the term Goods for that purpose.

Nature's action is complex: and nothing is gained in the long run by pretending that it is simple, and trying to describe it in a series of elementary propositions.

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

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