Sarah Elizabeth Lewis

Author of "The Rise," Curator & Assistant Professor at Harvard

Scott McKain

Customer Experience Expert & Best-Selling Business Author

Sir Ranulph Fiennes

Record-Breaking Explorer, Fundraiser & Author

Stephen Wolfram

Founder & CEO of Wolfram Research, Inc. & Author of "A New Kind of Science"

Steven Squyres

Scientific Investigator, NASA

Stuart Altman

Economist and Health Policy Expert

Susan Feniger

Chef and owner of Mud Hen Tavern & Border Grill Restaurants, Author of "Street Food."

Susan Rice

Domestic Policy Advisor (2021-2023); U.S. National Security Advisor (2013-2017); and U.S. Ambassador to the United Nations (2009-2013)

Susan Rice, leaving the administration, talks of what's possible in a divided nation

Sylvia Nasar

Author, "A Beautiful Mind" and "Grand Pursuit"; Knight Professor of Business Journalism, Columbia University

Tan Le

CEO of EMOTIV; Non Executive Director at QBE Insurance Group; Author of "The NeuroGeneration;" Member of Global Future Council on Neurotechnologies at World Economic Forum

Taran Killam

Cast member on "Saturday Night Live"

Terrence Howard

Actor, Musician & Activist; Known for Fox's "Empire"

Timothy Shriver

Chairman & CEO of the Special Olympics

Tom Rath

NYT Bestselling Author of StrenghtsFinder 2.0, Strengths Based Leadership & How Full is Your Bucket

Tommy Thompson

Secretary of Health and Human Services (2001-2005)

Tracy Anderson

Fitness Pioneer, Entrepreneur & Author, Founder of The Tracy Anderson Method

Tracy Anderson shares moves to work your whole body

Tracy Pollan

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

Vandana Shiva

World-Renowned Environmental Leader

Vince Molinaro

Leadership Advisor & New York Times Bestselling Author of "The Leadership Contract: The Fine Print to Becoming a Great Leader"

William Ury

Author, Mediator & Co-Founder of Program on Negotiation at Harvard Law School