William Petty,
A Treatise of Taxes and Contributions…
“ And finally, that the Customs had been an ensurance upon losses by enemies, as the ensurance now usual, is of the casualities of sea, winde, weather, and Vessel, or altogether; or like the ensurance in some Countreys of Houses from Fires for a certain small part of their yearly Rent. But be it what it will, it is anciently established by Law, and ought to be paid until it shall be abolished. Onely I take leave as an idle Philosopher to discourse upon the Nature and Measures of it. ”
