Leoni examines the various definitions of the word "freedom." He argues the semantic differences between ideologies and/or locations is a serious problem. He calls for economists and politicians to work toward ending this problem, though he notes (with a nod to Ludwig von Mises) some people often purposefully misuse words for their own benefit.

The text of the lecture was available from the Online Library of Liberty, http://oll.libertyfund.org/?option=com_staticxt&staticfile=show.php%3Ftitle=920&chapter=193186&layout=html&Itemid=27 as of 27 Aug 2012.