“Ell és, en aquest cas, com en molts altres, guiat per una mà invisible per promoure un fi que no formava part de la seva intenció.”
Text de l'edició incorporada · anglès
“He is in this, as in many other cases, led by an invisible hand to promote an end which was no part of his intention.”
— Adam Smith, An Inquiry into the Nature and Causes of the Wealth of Nations