
Message to the National Security League in honor of Constitution Day, quoted in New York Times (17 September 1923) "Ceremonies Mark Constitution Day".
1920s
The Washington Times. August 9, 1922. pg. 5. http://chroniclingamerica.loc.gov/lccn/sn84026749/1922-08-09/ed-1/seq-5/
Message to the National Security League in honor of Constitution Day, quoted in New York Times (17 September 1923) "Ceremonies Mark Constitution Day".
1920s
Source: Why Men Earn More (2005), p. 191.
As quoted in "Notable & Quotable: The Victims of Socialism" https://web.archive.org/web/20160217064704/http://www.wsj.com/articles/notable-quotable-the-victims-of-socialism-1455667462 (17 February 2016), The Wall Street Journal, A13
2000s, Can There Be an "After Socialism"? (2003)
Source: In a Pit with a Lion on a Snowy Day: How to Survive and Thrive When Opportunity Roars