When precedents fail to assist us, we must return to the
first principles of things for information and think, as
if we were the first men that thought.
-- Thomas Paine
But the great class of taxes from which revenue may be
derived without interference with production are taxes
upon monopolies - for the profit of monopoly is in itself
a tax levied upon production, and to tax it is simply to
divert into the public coffers what production must in
any event pay.