Aubrey de Grey

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

Peter Rojas

Co-founder of Gizmodo and of Engadget

Ingrid Newkirk

President, PETA

Rick Santorum

Former Member of the U.S. Senate

Noam Chomsky

Professor of Linguistics and Philosophy at MIT & Foreign Policy Author

David Remnick

Editor, The New Yorker

Shirley Tilghman

Molecular Biologist; Pres., Princeton University

Jim Wallis

Theologian, Writer, Political Activist & Racial Justice Advocate

Gerry Adams

President, Sinn Fein

Charles Best

Founder and Former CEO, DonorsChoose.org

From Classroom To Crowdfunding

Pardis Sabeti

Infectious Disease Expert & Professor at Harvard University

George Kohlrieser

Organizational, Clinical & Police Psychologist; Former Hostage Negotiator

Abhijit Naskar

Celebrated Neuroscientist, International Bestselling Author, Speaker

Kay Warren

Christian Author

Andrew Carmellini

Award-Winning Chef & Restaurateur

James Traub

Global Affairs & Politics Writer

Kristin Du Mez

NYT Bestselling Author of "Jesus and John Wayne" & History Professor at Calvin University

Dr. Afiya Fredericks

Assistant Professor of Psychology at the University of the District of Columbia; Growth Mindset Expert

Carl Pope

Senior Advisor to UN Envoy for Cities and Climate; Former CEO and Chairman of the Sierra Club

Daniel Dennett

Professor of Philosophy at Tufts University