James Woolsey

Former Director of the C.I.A.

William McDonough

Renowned Architectural Designer, Advisor & Co-Author of "Cradle to Cradle + The Upcycle"

Gary Vaynerchuk

Co-Founder & CEO of VaynerMedia

Day Trading Attention: How to Actually Build Brand and Sales in the New Social Media World

David Galenson

Father of Conceptual vs Experimental Theory of Creativity

R "Ray" Wang

Founder, Chairman & Principal Analyst at Constellation Research; Author of "Disrupting Digital Business"

Maude Barlow

Activist, Author & Former UN Senior Advisor on Water

Kurt Andersen

Host of "Studio 360 from PRI and WNYC" & Author

Donald Trump

45th President of the United States; Businessman & TV Personality

Francesco Stipo

President & CEO of the Houston Energy Club; Leading Authority on International Affairs & Energy

Ambassador Dennis Ross

Author, Counselor & William Davidson Distinguished Fellow at The Washington Institute; Former Special Assistant to President Obama

Geoffrey Moore

Organizational Theorist, Management Consultant & Author

Matt Miller

Fortune Columnist, Author & Radio Host

Dean Kamen

Founder of FIRST; President of DEKA Research & Development Corporation

Aubrey de Grey

Biomedical Gerontologist; Chief Science Officer of SENS Research Foundation; Researcher on Preventing Aging

Newt Gingrich

Former Speaker of the House of Representatives; New York Times Best-Selling Author & Co-Host for "Crossfire"

Rowan Gibson

Co-Founder of Innovation Excellence & Best-Selling Author

Elizabeth Economy

C.V. Starr Senior Fellow & Director of Asia Studies at the Council on Foreign Relations

Chip Conley

Strategic Advisor for Hospitality & Leadership at Airbnb; Founder of the Modern Elder Academy

An Alternative to the “Midlife Crisis” | Chip Conley | TED

Dan Ariely

Behavioral Economist; Professor at Duke University; Author; Founding Member of The Center for Advanced Hindsight

Toby Cosgrove

Executive Advisor & Former CEO & President at Cleveland Clinic

Ed Gavagan

Owner of PraxisNYC

Nicholas Stern

Chair, Grantham Research Institute on Climate Change and the Environment, United Kingdom

Peter Bakker

President, World Business Council for Sustainable Development (WBCSD), Switzerland

Dickon Pinner

Senior Partner & Leader of the Resource Productivity Practice at McKinsey & Company; Sustainability Activist

Marvin Odum

President, Shell Oil Company

Tim O'Reilly

Founder & CEO of O'Reilly Media

Jonathan Trent

Former Director of Offshore Membrane Enclosures for Growing Algae; Founder of UpCycle Systems

Charles Best

Founder and Former CEO, DonorsChoose.org

From Classroom To Crowdfunding

James Traub

Global Affairs & Politics Writer

Jeff Swartz

Former President and CEO, Timberland