Faced with the choice between changing one's mind and proving that there is no need to do so, almost everyone gets busy on the proof.
John Kenneth "Ken" Galbraith (October 15, 1908 – April 29, 2006) was a Canadian-born economist, public official, and diplomat, and a leading proponent of 20th-century American liberalism. His books on economic topics were bestsellers from the 1950s through the 2000s, during which time Galbraith fulfilled the role of public intellectual.
Enjoy the best John Kenneth Galbraith picture quotes.
Read more about John Kenneth Galbraith on Wikipedia.