What I admire in Columbus is not his having discovered a new world but his having gone to search for it on the faith of an opinion.
Anne-Robert-Jacques Turgot, Baron de LauneGold and silver are constituted, by the nature of things, money, and universal money, independent of all convention, and of all laws.
Anne-Robert-Jacques Turgot, Baron de LauneAll is more or less proper to serve as a common measure, in proportion as it is more or less in general use, of a more similar quality, and more easy to be divided into aliquot parts. All is more or less applicable for the purpose of a general pledge of exchange, in proportion as it is less susceptible of decay or alteration in quantity or quality.
Anne-Robert-Jacques Turgot, Baron de Laune