No man pays double or twice for the same thing, forasmuch as nothing can be spent but once.
William PettyFor every Seaman of Industry and Ingenuity, is not only a Navigator, but a Merchant, and also a Soldier.
William PettyWithout the knowledge of the true number of the people, as a principle, the whole scope and use of keeping bills of birth and burials is impaired; wherefore by laborious conjectures and calculations to deduce the number of people from the births and burials, may be ingenious, but very preposterous.
William PettyA thousand acres that can feed a thousand souls is better than ten thousand acres of no more effect.
William Petty