John Stuart Mill,
Principles of Political Economy
(1871)
“ For example, it has been contended, and by some from whom better things might have been expected, that the argument for the income-tax, grounded on its falling on the higher and middle classes only, and sparing the poor, is an error; some have gone so far as to say, an imposture; because in taking from the rich what they would have expended among the poor, the tax injures the poor as much as if it had been directly levied from them. ”
