In the choice between changing ones mind and proving there's no need to do so, most people get 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.
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