Sir Richard Branson

Founder of Virgin Group

Finding My Virginity: The New Autobiography

Dr. Michio Kaku

World-Renowned Theoretical Physicist

Dr. Kaku Interview - Think 2018 - YouTube

Ray Kurzweil

Chairman of Kurzweil Technologies; Inventor; Futurist

Adrian Grenier

Actor Known for His Role as Vincent Chase on HBO's "Entourage"

Jeff Immelt

Chairman of athenahealth Board of Directors, former Chairman and CEO, General Electric

Frances Beinecke

President Natural Resources Defense Council.

Marvin Odum

President, Shell Oil Company

Kevin Surace

Innovator of the Decade (CNBC) and Inc. Entrepreneur of the Year

TEDxPresidio - Kevin Surace - Retrofitting the Empire State Building ...

John McCain

Republican U.S. Senator, Arizona; 2008 Presidential Nominee

Faith of My Fathers: A Family Memoir

Kristin Groos Richmond

Co-Founder and CEO, Revolution Foods

Frank Bruni

First Openly Gay Op-Ed Columnist at The New York Times; Bestselling Author

Dan Gilbert

Psychologist; Happiness Expert

Opening Convocation 2014: Feature Speaker Dan Gilbert - YouTube

Peter Diamandis

Chairman and CEO, X PRIZE Foundation; Author

Van Jones

CNN Contributor; Best-Selling Author; Human Rights, Education and Clean Energy Advocate

Lisa Ling

Executive Producer and host of This is Life on CNN

Celine Cousteau

Founder and Executive Director CauseCentric Productions

Lamman Rucker

Actor, Education Activist & Green Living Advocate; Best Known for OWN Drama "Greenleaf"

Dr. Jane Goodall

Internationally Renowned Primatologist, Founder of the Jane Goodall Institute, UN Messenger of Peace

Amit Chatterjee

CEO of Hara Software

Dennis Dimick

Executive Editor, Environment, National Geographic