No man pays double or twice for the same thing, forasmuch as nothing can be spent but once.
William PettyIt were good to know how much hay an acre of every sort will bear; how many cattle the same weight of each sort of hay will feed and fatten; what quantity of grain and other commodities the same acre will bear in one, three or seven years; unto what use each soil is proper; all which particulars I call intrinsic value, for there is also another value merely accidental or extrinsic.
William PettyRaising of money may indeed change the species, but with so much loss as the foreign pieces were raised unto, above their intrinsick value.
William PettyI hope no man takes what I said about the living and dieing of men for mathematical demonstration.
William Petty