Trevor Blake

Entrepreneur

Brian Hoffstein

Contributing Writer

Cody Adams

Managing Editor of The Floating University.

David Bellos

Translator

Jeffrey Israel

Author & Jewish Studies Professor at Williams College

Slavoj Žižek

Philosopher & International Director of the Birkbeck Institute for the Humanities

Shauna Shapiro Ph.D.

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

Good Morning, I Love You, Violet!

BJ Fogg

Founder & Director of the Stanford Behavior Design Lab; Behavioral Psychologist and Author

Robert Cialdini

New York Times Best-Selling Author; The Foundational Expert in the Science of Influence & Persuasion

Matt Damon

Actor, Screenwriter & Producer; Co-Founder of Water.org; Expert Advocate on Global Water & Sanitation Crisis

Edward Norton

Award Winning Actor & Filmmaker

Joe Palca

NPR Science Correspondent

Jason Kottke

Designer of Silkscreen Typeface, Lifetime Achievement Award Blogger

Carl Pope

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

Sam Harris

Neuroscientist, Philosopher & Bestselling Author

Alison Gopnik

Professor & World Leader in Children's Learning and Development

Francis Tapon

Author, Harvard MBA, and World Traveler

Pastor Rick Warren

Pastor & Author of "The Purpose-Driven Life"

Jesse Schell

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

Irwin Kula

Irwin does challenge the status quo in the American spiritual landscape.