Source : Source: www.sfgate.com
Source : Source: historynewsnetwork.org
Source : Alfie Kohn (2006). “Unconditional Parenting: Moving from Rewards and Punishments to Love and Reason”, p.20, Simon and Schuster
Al Gore
Former Vice President of the United States
Elizabeth Dole
Former United States Senator
George H. W. Bush
41st U.S. President
George McGovern
Historian
Jack Kemp
Former United States Secretary of Housing and Urban Development
Michael Dukakis
Former Governor of Massachusetts
Ross Perot
Businessman
Walter F. Mondale
Former Vice President of the United States
William J. Clinton
42nd U.S. President