If a person advocates free trade domestically, he cannot logically advocate protective tariffs and other similar measures that prevent goods and services from moving freely across national boundaries. It is simply not true that a nation and a people are made more prosperous by compelling themselves to pay two and three times as much as they need to pay for the goods and services they want. It just does not make sense to improve the means of moving goods from one nation to another, and then to cancel out the savings in transportation costs by passing laws to hamper the resulting trade. I am convinced that such contradictions arise more from lack of understanding than from evil intentions.
 

– Dean Russell, The Freeman [July 1964]