Dan Schulman

President & CEO of PayPal; Former President of American Express

Warren Berger

Innovation Expert and Best-Selling Author of "A More Beautiful Question: The Power of Inquiry to Spark Breakthrough Ideas"

Salamishah Tillet

Creative Writing Professor at Rutgers University-Newark; Co-founder of A Long Walk Home; Feminist Activist & Scholar

Edward Tenner

Smithsonian Institution Distinguished Scholar & Author of "Why Things Bite Back" and "Our Own Devices"

Joe Sabia

Digital Artist, Celebrity Interviewer, TED Speaker & Franz Liszt Society Member

Martha Stewart

Founder of Martha Stewart Living Omnimedia, Emmy Award-Winning Television Show Host, Entrepreneur & Best-Selling Author

Martha Stewart Interview: Recipe for Entrepreneurial Success

Peter Thum

Co-Founder & CEO of Muse; Founder of Ethos Water

Donna Karan

Award-Winning Fashion Designer

David Rockwell

President of the Rockwell Group

Nancy Lublin

Founder & Former CEO of Crisis Text Line

Sarah Kay

Poet & Founder of Project V.O.I.C.E.; TED Speaker

Justin Hall-Tipping

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

Steven Rosenbaum

Author, Filmmaker & Technologist; Co-Founder and Executive Director of The Center for Sustainable Media

Bob Mankoff

Cartoon & Humor Editor; Humorist; President, CartoonCollections[.]com; Founder of The Cartoon Bank

Tavi Gevinson

Creator of Fashion Blog Style Rookie and Rookie Magazine; Actress and Singer in the Broadway Show "This Is Our Youth"

Sharmeen Obaid-Chinoy

Pakistani Journalist & Filmmaker; Activist and Founder of the Citizens Archive of Pakistan

Jeffrey Kluger

Journalist; Editor and Writer at TIME MAGAZINE. Author of 8 books, including APOLLO 13.