The phrase laissez-faire, is a French expression that means "let do, Miss, referring to a complete freedom in the economy: free-market, free manufacturing, low or null taxation, free labour market and minimum government intervention. It was used for the first time by Vincent de Gournay, physiocrat of the 18th century, against the intervention of the Government in the economy.So complete, the phrase is: Laissez faire et laissez passer, monde le va de lui même; «Let do, Miss, the world will only».From the legal field of formal positivism, this phrase is presented as an apparent depoliticization of the State, to ensure the economic, political and social freedom.