Adam Smith (1723–1790)
People of the same trade seldom meet together, even for merriment and diversion, but the conversation ends in a conspiracy against the public, or in some contrivance to raise prices <br class="br">An inquiry into the nature and causes of the wealth of nations. With notes, and an additional vol., by D. Buchanan - Volume 1, Página 215 http://books.google.com.br/books?id=l2EUAAAAQAAJ&pg=PA215, Adam Smith, David Buchanan - 1814 <br class="br">Atribuídas