Tiffany Shlain

Founder of The Webby Awards; Emmy-Nominated Filmmaker, Bestselling Author, Internet Pioneer & Futurist

Raj Patel

Award-Winning Writer, Food Politics Activist, Filmmaker & Academic

Calvin Trillin

Author, Columnist, Humorist & Political Satirist

Andrew Cohen

Founder, EnlightenNext

Immaculée Ilibagiza

Author, "Left to Tell: Discovering God Amidst the Rwandan Holocaust"

Dr. Samantha Nutt

Medical Doctor, Award-Winning Humanitarian, Bestselling Author & Founder of War Child USA

Dean Karlan

Behavioral Economist, Social Entrepreneur & Author

Kenneth Roth

Executive Director at Human Rights Watch

Anna Dietrich

‎Entrepreneur; Consultant; Speaker; COO & Co-Founder of Terrafugia, Inc.

Virginia Postrel

Author & Columnist; Writes on The Intersection of Commerce & Culture

Marina Adshade

Author of "Dollars and Sex: How Economics Influences Sex and Love"

Edward C. Chow

Senior Associate at the Center for Strategic and International Studies, Energy Security and Climate Change Program

Laura Liswood

Secretary General, Council of Women World Leaders; Senior Advisor, Goldman Sachs

Jim Wallis

Theologian, Writer, Political Activist & Racial Justice Advocate

Christ in Crisis: Why We Need to Reclaim Jesus

Coleman Peterson

Former Executive Vice President, Wal-Mart. President/CEO of Hollis Enterprises, LLC

Maude Barlow

Activist, Author & Former UN Senior Advisor on Water

Helen Clark

Former Administrator of the United Nations Development Programme & Former Prime Minister of New Zealand

Justin Hall-Tipping

The Energy Evangelist, Justin Hall-Tipping works on nano-energy startups -- mastering the electron to create power.

Maria Conchita Alonso

Singer-Songwriter; Latin Actress; LGBT Rights Activist

Sarah O. Ladislaw

Former Managing Director at Rocky Mountain Institute (RMI)

Rose Mapendo

Humanitarian / Activist / Congolese Genocide Survivor

Larraine Segil

Global Business Consultant

Yves Rossy

Military-Trained Pilot & Aviation Enthusiast

Todd Kuiken

Biomedical Engineering Manager at the Rehabilitation Institute of Chicago

James Rubin

Special Envoy and Coordinator for the U.S. Department of State’s Global Engagement Center, Served as U.S. Assistant Secretary of State for Public Affairs in the Clinton Administration from 1997–2000

Richard Wolffe

Digital Executive, Best-Selling Author & Columnist at The Guardian

President's Speaker Series - YouTube

Scott Aughenbaugh

Strategic Engagement Director at the National Security Innovation Network

John Prendergast

Human Rights Advocate and Author of Unlikely Brothers

Slavoj Žižek

Philosopher & International Director of the Birkbeck Institute for the Humanities

David Bellos

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