Elliot Schrage

Former Vice President of Communications, Public Policy & Platform Marketing at Facebook

Dr. John Kao

Chairman, Institute for Large Scale Innovation, Bestselling Author of "Innovation Nation" and "Jamming: The Art and Discipline of Business Creativity"

David Suzuki

Environmentalist & Scientist; Co-Founder of the David Suzuki Foundation

Kiefer Sutherland

Award-Winning Actor & Musician

Gregory Boyle

Roman Catholic Priest of the Jesuit Order; Founder of Homeboy Industries

Julius Erving

Retired NBA Forward & Pioneer of the American Basketball Association

John Smoltz

Former Atlanta Braves Pitcher & National Baseball Hall of Famer; MLB Network and Fox Analyst

Nicholas Sparks

International Bestselling Novelist & Screenwriter, Known for "The Notebook"

Graham Hill

Founder of Life Edited & TreeHugger.com

Moby

Musician, DJ, Photographer

Lolo Jones

USA Track & Field Star

Angie Harmon

Actress & Model; Best Known for "Rizzoli & Isles" and "Law & Order"

Shashi Tharoor

Diplomat & Author; Former United Nations Under-Secretary-General

Josh Hamilton

Former Outfielder for the Texas Rangers; 5-Time MLB All-Star & Recovering Substance Abuser

Deval Patrick

Two-term Governor of Massachusetts, Civil Rights Attorney & Business Leader

City and Colour

Recording Alias for Canadian Singer-Songwriter Dallas Green

Natasha Leggero

Actress & Stand-Up Comedian

Tracy Pollan

Emmy Award-Nominated Actress & Author, Known for "Family Ties"; Advocate for Parkinson's Disease

Martin Seligman

Zellerbach Family Professor of Psychology & Director of the Positive Psychology Center at the University of Pennsylvania

Tomorrowmind: Thriving at Work with Resilience, Creativity, and Connection―Now and in a...

Anjelah Johnson-Reyes

Comedienne, Actress & Former NFL Cheerleader