In an off-hand, impromptu fashion, privilege may be defined as the legally protected right to a flow of income and benefits from legally recognized and protected property rights. Privileges may be earned, such as the income derived from funds which the recipient himself has earned and saved; privileges often are entirely unearned, such as the income derived from inheritances of a vast nature, unearned income in site value in city land (community created wealth) or natural resources. Nature gave man a great abundance of natural resources free and man has been attempting to correct that oversight ever since by charging mankind plenty for these useful, indispensable natural resources. Unearned income derived from inheritance, natural resources, site value, and other unearned sources, as monopoly franchises, may be regarded as unearned privileges divorced from the performance of necessary economic functions. Abraham Lincoln once defined the parasitic privileged class as those who live by owning rather than by doing.