Anna Deavere Smith

Award-Winning Actress, Playwright & Social Commentator

Amy Goodman

Host & Executive Producer, Democracy Now!

Rick Santorum

Former Member of the U.S. Senate

Esther Dyson

Executive Founder of Way to Wellville

Grover Norquist

Founder & President of Americans for Tax Reform, Author, Board Member of the Center for the National Interest, The Parental Rights Organization & The National Rifle Association

An Phung

Multimedia Journalist

Matthew Bishop

Nonresident Senior Fellow of Global Economy and Development at the Center for Sustainable Development

Calvin Trillin

Author, Columnist, Humorist & Political Satirist

Robert Putnam

Professor of Public Policy, Harvard Kennedy School of Government; Author of "Our Kids"

Aubrey de Grey

Biomedical Gerontologist; Chief Science Officer of SENS Research Foundation; Researcher on Preventing Aging

Sebastian Copeland

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

Karen Armstrong

Founder of The Charter for Compassion

Graham Hill

Founder of Life Edited & TreeHugger.com

David M. Rubenstein

Co-Founder & Co-CEO of The Carlyle Group

Kay Warren

Christian Author

Spencer Wells

Geneticist, Anthropologist, Author, Entrepreneur, Adjunct professor at the University of Texas at Austin

Raj Patel

Award-Winning Writer, Food Politics Activist, Filmmaker & Academic

Noam Chomsky

Professor of Linguistics and Philosophy at MIT & Foreign Policy Author

Jacques Pépin

Master French Chef; Food Columnist; Cookbook Author Educator

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)

Lidia Bastianich

Celebrity Chef, Author, Host of "Lidia's Kitchen"

Lisa Randall

Award-Winning Physicist & Author

Dark Matter and the Dinosaurs: The Astounding Interconnectedness of the Universe

Nelson George

Author / Filmmaker

Kurt Andersen

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

Ambassador Dennis Ross

Author, Counselor & William Davidson Distinguished Fellow at The Washington Institute; Former Special Assistant to President Obama

David Remnick

Editor, The New Yorker

Neil Giuliano

Gay Rights Activist & President and CEO of Greater Pheonix Leadership

Reihan Salam

President of the Manhattan Group for Policy Research; Former Executive Editor of National Review

Robert Hormats

Vice Chairman of Kissinger Associates Inc.

Charles Best

Founder and Former CEO, DonorsChoose.org

From Classroom To Crowdfunding