“The subjects of every state ought to contribute toward the support of the government, as nearly as possible, in proportion to their respective abilities; that is, in proportion to …the revenue which they respectively enjoy under the protection of the state ….[As Henry Home (Lord Kames) has written, a goal of taxation should be to] ‘remedy inequality of riches as much as possible, by relieving the poor and burdening the rich.'”
–Adam Smith, The Wealth of Nations
Adam Smith sounds like a good socialist.
Islamic law even better, no income taxes, only wealth is taxed.