Economics is the study of how societies use scarce resources to produce valuable goods and services and distribute them among different individuals. If we think about the definitions, we find two key ideas that run through all of economics:

"The past is a ghost that haunts the present, whether we acknowledge it or not."

The fabric of society must depend on the individual rights of persons, on the rights of property.

人类是陆地动物，但也是海洋动物。

The things that we love tell us what we are.