Milton Friedman

People who intend only to seek their own benefit are led by an invisible hand to serve public interest which was no part of their intention. I say that there is a reverse invisible hand: People who intend to serve only the public interest are led by an invisible hand to serve private interests which was not part of their intention. (Friedman, 1993)

Manusia tampaknya memang jadi lebih gesit ketika ia memih