The Twitter GIF master joins Stewart to discuss the teachings of the Tao Te Ching.

Derek Sivers is the creator of CD Baby and author of "Anything You Want."

This is a solo episode where Sean discusses mental models and how he learns.

Daniel Gross is a former partner at Y Combinator and current founder of Pioneer.

This podcast clip is part of a conversation between Naval Ravikant and Babak Nivi on wealth.

Steven Pressfield is the author of The War of Art.

Michael Mayer is the founder of Bottomless, a company that uses a smart scale to automatically order coffee for customers.

Alexander Cortes is a personal trainer and health writer.

In this episode, Tim calls listeners and answers their questions.

Naval Ravikant is the CEO of AngelList as well as an investor in about 200 companies and an adviser to many.

Caterina Fake is the co-founder of Yes VC. She is also the co-founder of Flickr and has previously served as Chair of Etsy.

Scott Adams brought Naval Ravikant into his Periscope session to chat about cyrptocurrency, Twitter, climate change, universal basic income, the illusions of life and more.

The long awaited return of Naval Ravikant to Periscope.

Susan Cain is the author of Quiet Power: The Secret Strengths of Introverts and Quiet: The Power of Introverts in a World That Can't Stop Talking.

Greg McKeown is the author of the New York Times bestseller, Essentialism: The Disciplined Pursuit of Less.