474
Heckman and Masterov, 28-35.
475
Malcolm Gladwell, «Most Likely to Succeed,» The New Yorker, December 15, 2008.
476
Alexander Hamilton, «Report on Manufactures,» University of Chicago Press, The Founders’ Constitution, December 5, 1791.
477
Ron Chemow, Alexander Hamilton (New York: Penguin Press, 2004).
478
Abraham Lincoln, Speech to Germans in Cincinnati, Ohio, February 12, 1861, Collected Works of Abraham Lincoln, vol. 4 (Piscataway, NJ: Rutgers University Press, 1990), 203.