Jimmy Wales

Founder of Wikipedia & Wikitribune

John Legend

EGOT Winning Musician, Producer & Philantropist

Sir Richard Branson

Businessman & Founder of Virgin Group

Robert Hormats

Vice Chairman of Kissinger Associates Inc.

William Easterly

Professor of Economics at New York University; Co-Director, Development Research Institute

Tom Freston

Principal, Firefly3; Former CEO, Viacom Inc.

Steven Mazie

Associate Professor of Political Studies, Bard High School Early College

An Phung

Multimedia Journalist

Cody Adams

Managing Editor of The Floating University.

Moby

Musician, DJ, Photographer

Calvin Trillin

Author, Columnist, Humorist & Political Satirist

Robert Thurman

International Authority on World Religions and Spirituality

Lawrence Summers

Professor & Former President of Harvard University; Former Secretary of the Treasury, Director of the National Economic Council, & Chief Economist of the World Bank

Jimmy Carter

Former United States President (1977-1981), Author

Robert Menendez

U.S. Senator, (D) New Jersey

Patrick Byrne

Founder & CEO, Overstock.com

Ingrid Newkirk

President, PETA

Michael Walzer

Professor Emeritus, The Institute for Advanced Study

Brian Hoffstein

Contributing Writer

Jeffrey Israel

Author & Jewish Studies Professor at Williams College

Kay Warren

Christian Author

Shashi Tharoor

Diplomat & Author; Former United Nations Under-Secretary-General

Robert Greene

New York Times Bestselling Author of "The 48 Laws of Power," "The Art of Seduction," "The 33 Strategies of War," and "The 50th Law"

Tom Stewart

Editor, Harvard Business Review

Peter Thiel

Former CEO and Co-founder of PayPal; Technology Entrepreneur, Investor and Philanthropist

D. Quinn Mills

Consultant; Professor Emeritus, Harvard Business School

Vali Nasr

Professor of International Affairs & Middle East Studies at Johns Hopkins University

Islamic Leviathan: Islam and the Making of State Power (Religion and Global Politics)

Tim O'Brien

Pulitzer Prize Winning Novelist for "The Things They Carried"

Sebastian Copeland

Adventurer, Environmental Activist, Award-Winning Photographer, Author, Lecturer & Founder of the Sedna Foundation

Kurt Andersen

Host of "Studio 360 from PRI and WNYC" & Author