Gretchen Rubin

New York Times Best-Selling Author of "The Happiness Project;" Host of Podcast "Happier with Gretchen Rubin"

Gretchen Rubin - Knowing Yourself: Why You're Happy and You ...

Halla Tomasdottir

CEO, The B Team, Presidential Candidate (2016) & TED Speaker, Iceland

Hugh Evans

Humanitarian; Founder & CEO of Global Poverty Project

Janine di Giovanni

Author, Award-Winning Foreign & War Correspondent; Visiting Fellow at Yale Law School & Executive Director The Reckoning Project

Jason Silva

Emmy-nominated TV Personality; Futurist; Host of National Geographic Channel’s “Brain Games”

John Mackey

Co-Founder & CEO, Whole Foods Market

Jon Bergmann

Pioneer of the Flipped Class Movement & Bestselling Author of "Flip Your Classroom"; Member of the TED-Education Advisory Board

Joseph Gordon-Levitt

Founder of HitRecord & Actor Known for "Inception" & "The Dark Knight Rises"

Josh Tickell

America's #1 Expert on the Millennials generation. Creator, Director and Star of the movie "FUEL"

Joshua Harris

Former Pastor; Author of "I Kissed Dating Goodbye"

Julian Treasure

Five-Time TED Speaker, Author & Founder of The Sound Agency

Julie Burstein

Peabody Award-Winning Radio Producer, TED Speaker and Bestselling Author of "Spark: How Creativity Works"

Juliet Schor

Professor of Sociology at Boston College

Karen Tse

Human Rights Defender & Social Entrepreneur; Founder of International Bridges of Justice

Laura Snyder

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

Lesley Hazleton

Author of "The First Muslim," a New Look at the Life of Muhammad

Lisa Kristine

Internationally Recognized Fine-Art Photographer, Humanitarian & Activist

Lisa Oz

Best-Selling Author, Producer, Host & Entrepreneur

Lisa P. Jackson

Vice President of Environment, Policy & Social Initiatives at Apple

Lori Cheek

Architect; Entrepreneur; Founder & CEO of Cheekd