2018-2019
Jon Meacham
Nadine Strossen
Jana Eggers
2017-2018
Mark Blyth
British National Debate Team
Misty Copeland
2016-2017
Sonia Nazario
David Brooks
Sonia Shah
2015-2016
Jose Antonio Vargas
Bill McKibben
Wes Moore
Sheryl WuDunn
2014-2015
Yo-Yo Ma
Milton Chen
Marlo Lewis Jr.
Gilbert Metcalf
Chris Abani
Neil Gershenfeld
2013-2014
David Wessel
Susan Glasser
Hedrick Smith
Andrew Bacevich
Derek Chollet
Yong Zhao
2012-2013
Robert Putnam
Charles Villa-Vicencio
J. Kirk Brown & Michael Radelet
Felice Gaer
Shirin Ebadi
2011-2012
Wangari Maathai
Sandra Postel
Michael Forsberg
Mogens Bay & E. Robert Meaney
Don Worster
2010-2011
E. Benjamin Skinner
Christine Todd Whitman
Chuck Hagel & Zhang Yesui
Mark Danner
Laurie Garrett
Pietra Rivoli
2009-2010
Doug Bereuter
Kaiser Kuo
Dr. Susan Shirk
Richard Behar
Wilson Dialogue
Rob Gifford
2008-2009
David Gergen
Ronald Dworkin
Ted Sorensen
F.W. de Klerk
Dr. Michael Olivas & Dr. Vernon Briggs
Colin G. Campbell
2007-2008
Bruce Babbit
Joel Sartore
Douglas Durante & Jerry Taylor
Sunita Narain
Amory Lovins
Richard Cizik
2006-2007
John Bolton
Azar Nafisi
George McGovern
Clyde Prestowitz
Sherwin Nuland
2005-2006
Elaine Pagels
Michael Walzer
T.R. Reid
Peter Peterson