Amandla Stenberg

Actor, Singer & Activist Known for "The Hate U Give," "The Hunger Games" & "Everything, Everything"

Billie Jean King

Former World #1 Professional Tennis Player & Sports Icon; Advocate for Women's Equality

Robert Cialdini

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

Suze Orman

Expert Financial Advisor, Former Host of "The Suze Orman Show" & Best-Selling Author

Suze Orman - Yahoo Finance

Bert Jacobs

Co-Founder & Chief Executive Optimist of Life is Good

Hoda Kotb

Award-Winning Broadcast Journalist, Television Personality, Author & Co-Anchor of NBC News' TODAY

Blake Mycoskie

Founder of TOMS, Social Entrepreneur & Author of NY Times Bestseller "Start Something That Matters"

Judge Greg Mathis

Civil Rights Activist, Television Personality

Malala Yousafzai

Youngest-Ever Nobel Prize Winner; Advocate for Girls' Education & Women's Equality; Author of the International Bestseller "I Am Malala"

Anousheh Ansari

CEO of X Prize Foundation & First Female Private Space Explorer

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 ...

Tim Ferriss

Angel Investor & Author of "The 4-Hour Workweek"

Matthew Kelly

Internationally-Acclaimed Speaker & Bestselling Author

Nothing Is Random: The Old, The New, and The Enduring Ideas In Business

Garry Kasparov

World Champion Chess Expert & Strategist; Chairman of the Human Rights Foundation based in New York

Ivanka Trump

Executive Vice President of Acquisitions & Development, Trump Organization; Founder, Ivanka Trump Collection

Chris Hadfield

First Canadian to Walk in Space; Retired Astronaut & Former Commander of the International Space Station

Richard Thaler

Professor of Behavioral Science and Economics at the University of Chicago; Author of "Misbehaving: The Making of Behavioral Economics"

Richard Thaler: 'We Are Incapable of Learning From the Past ...