Raj Patel

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

Alison Gopnik

Professor & World Leader in Children's Learning and Development

Calvin Trillin

Author, Columnist, Humorist & Political Satirist

Laura Snyder

Professor; Science Historian; Philosopher; Author of "The Philosophical Breakfast Club"

David M. Rubenstein

Co-Founder & Co-CEO of The Carlyle Group

Andrew Cohen

Founder, EnlightenNext

Sebastian Copeland

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

Nelson George

Author / Filmmaker

Thomas Pogge

Philosopher Thomas Pogge wants to ensure medications get to those who need it most. He has published on a wide range of subjects such as global justice and human rights.

Bob Mankoff

Cartoon & Humor Editor; Humorist; President, CartoonCollections[.]com; Founder of The Cartoon Bank

Kenneth Roth

Executive Director at Human Rights Watch

Robert Hormats

Vice Chairman of Kissinger Associates Inc.

Dalia Mogahed

President and CEO, Mogahed Consulting, LLC; Author, "Who Speaks for Islam?"

Virginia Postrel

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

The Sis Official

Public Academic, Feminist & Criminal Justice Scholars; Founders of The Sis Official and Activist

Jeffrey Israel

Author & Jewish Studies Professor at Williams College

Randy Cohen

Writer, Known for "The Ethicist"

Neil Giuliano

Gay Rights Activist & President and CEO of Greater Pheonix Leadership

Ambassador Dennis Ross

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

Shauna Shapiro Ph.D.

Best-Selling Author, Professor, Clinical Psychologist & Internationally Recognized Expert in Mindfulness & Self-Compassion

Good Morning, I Love You, Violet!

Lisa Witter

Partner and Chief Change Officer, Fenton

Interview Lisa Witter (English)

Melissa Chiu

Museum Director, Asia Society

Aubrey de Grey

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

Rick Santorum

Former Member of the U.S. Senate

Noam Chomsky

Professor of Linguistics and Philosophy at MIT & Foreign Policy Author

Francis Tapon

Author, Harvard MBA, and World Traveler

Julian Baggini

Julian Baggini is the author of several books about philosophy written for a general audience. He is the author of The Pig that Wants to be Eaten and 99 other thought experiments and is co-founder and editor-in-chief of The Philosophers' Magazine.

Jim Wallis

Theologian, Writer, Political Activist & Racial Justice Advocate

Abhijit Naskar

Celebrated Neuroscientist, International Bestselling Author, Speaker

Kristin Du Mez

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