Lawrence Krauss

Theoretical Physicist, Author & Professor

Alfie Kohn

Author & Speaker on Human Behavior, Education, & Parenting; Outspoken Critic of Education's Fixation on Grades

Dr. Gary Small

Expert on the Brain, Memory and Aging

Jeffrey Israel

Author & Jewish Studies Professor at Williams College

Mark Zandi

Chief Economist of Moody's Analytics; Co-Founder of Economy.com

Nadine Strossen

Professor of Law; President, American Civil Liberties Union (1991-2008)

Marina Adshade

Author of "Dollars and Sex: How Economics Influences Sex and Love"

Richard Price

Author of "Freedomland"

Virginia Postrel

Author & Columnist; Writes on The Intersection of Commerce & Culture

Tristram Stuart

Environmental Campaigner, Author & Businessman

Shai Agassi

Founder and CEO of Project Better Place; Green Automobile Pioneer

Maude Barlow

Activist, Author & Former UN Senior Advisor on Water

Viktor Mayer-Schönberger

Co-Author of “Big Data" and "Delete;" Expert on the Networked Economy

Rachel Haot

Former Executive Director of Transit Innovation Partnership & Chief Digital Officer for the City of New York

Slavoj Žižek

Philosopher & International Director of the Birkbeck Institute for the Humanities

Jesse Schell

Game Designer, CEO of Schell Games & Author of "The Art of Game Design"

Tiffany Shlain

Founder of The Webby Awards; Emmy-Nominated Filmmaker, Bestselling Author, Internet Pioneer & Futurist

Raj Patel

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

Jim Wallis

Theologian, Writer, Political Activist & Racial Justice Advocate

Christ in Crisis: Why We Need to Reclaim Jesus

Calvin Trillin

Author, Columnist, Humorist & Political Satirist