Tim Tebow

ESPN College Football Analyst; Heisman Trophy Winner; Former Quarterback for NFL's Denver Broncos & Baseball Outfielder for the New York Mets

Jonathan Bush

Technology Entrepreneur; Co-Founder & Former CEO of athenahealth

Joy-Ann Reid

MSNBC Correspondent, Political Author & Host of "The ReidOut"

Medgar and Myrlie: Medgar Evers and the Love Story that Awakened America

Lynsey Addario

American Photojournalist; Contributor for National Geographic & Time Magazine

Tim O'Reilly

Founder & CEO of O'Reilly Media

Nicholas Burns

Professor of the Practice of Diplomacy & International Politics, Harvard Kennedy School

Dr. Dean Ornish

Physician, Leading Researcher in Healthcare, Founder of the Preventive Medicine Research Institute & Bestselling Author

Tonya Lewis Lee

Author, Producer, Filmmaker & Entrepreneur; Women's Health Activist

Tonya Lewis Lee on the Black maternal mortality crisis

James Watson

Molecular Biologist, Geneticist & Zoologist

Nicholas Christakis

Sol Goldman Family Professor of Social & Natural Science; Director of the Human Nature Lab; Co-Director of the Yale Institute for Network Science

Craig Venter

Founder & CEO of Synthetic Genomics Inc.