Know Thyself

In this episode I sit down with Mel Robbins, host of The Mel Robbins Podcast and author of The Let Them Theory. Mel takes me back to the age of 41, when liens on her house, unemployment, heavy drinking, and constant anger had turned her into a person she didn’t recognize. We explore what finally moved her to change, why thinking alone never changes a life, and how she slowly separated her sense of...

David Whyte trained as a marine zoologist, spent two years as a naturalist guide in the Galapagos, and went on to become one of the most beloved poets of our time. In this conversation we begin with words themselves: how they first arrive in our bodies as children, how they drift into abstraction, and how poetry can return them to direct presence. David describes the stages of attention he discove...

In this episode, I sit down with Janna Levin, a theoretical astrophysicist at Barnard College of Columbia University, Guggenheim fellow, and author of Black Hole Survival Guide, Black Hole Blues, A Madman Dreams of Turing Machines, and How the Universe Got Its Spots. Janna started out as a philosophy major drawn to the biggest questions, then found in physics a way of answering them that felt true...

Elizabeth Gilbert joins me for her first public conversation after a six month sabbatical, a stretch where she stopped writing, producing, and planning so she could simply be available to life. Liz is the author of "Eat, Pray, Love", "Big Magic", and her memoir "All the Way to the River". In this conversation she speaks openly about the daily practice of two-way praye...

My guest today is Tom Bilyeu, the entrepreneur behind Quest Nutrition who went on to build Impact Theory into one of the most watched long form interview channels in the world. Tom is now building a procedurally generated video game called Kyzen, and in recent years his content has shifted away from personal development and toward economics, artificial intelligence, and the systems that quietly sh...

Matthew Hussey is back on the show, and this conversation picks up right where our last one left off, except he's grown a lot since then. Matthew built his early career on a simple idea: create more opportunity and you'll make better romantic choices. Over time he realized abundance alone doesn't fix anything. The real work lives underneath, in the unconscious patterns and emotional re...

I sat down with Dr. Shefali, clinical psychologist trained at Columbia and the voice behind the Conscious Parenting Movement for over two decades, to explore what it really means to parent from awareness instead of ego. We talk about the illusion of the perfect parent, why children are our greatest mirrors, and how the wounds we carry from our own childhoods get passed down unless we do the work t...

John Wineland has spent nearly twenty years teaching people how to love more deeply, and in this conversation he lays out why intimacy has become one of the most demanding spiritual practices available to us. We talk about why relationships surface our oldest wounds, why the partner we choose so often mirrors the exact pattern we grew up in, and why that mirroring is not a mistake but an invitatio...

Dr. David Spiegel is the Wilson Professor and Associate Chair of Psychiatry at Stanford, the co-founder of the hypnosis app Reveri, and one of the world's leading clinical researchers on hypnosis. He has worked with over 7,000 patients across 50 years, and in this conversation he opened with something I did not expect: he tested my hypnotizability live on camera. I scored a nine out of ten. Wh...

Rizwan Virk is an MIT-trained computer scientist, video game pioneer, and bestselling author of The Simulation Hypothesis. His work sits at a rare intersection: quantum physics, Eastern mysticism, and the architecture of video games, all pointing toward the same unsettling and strangely liberating conclusion. In this conversation, we explore not the nihilistic version of simulation theory, but the...

Dr. Robert Lustig is a neuroendocrinologist, pediatrician, and bestselling author who has spent 45 years watching children get sicker despite his best efforts to stop it. His work connects the dots between ultra-processed food, mitochondrial dysfunction, dopamine hijacking, and the chronic stress epidemic in a way that is impossible to dismiss. In this conversation, we explore what he calls the ho...

Jim George is a stillness coach, former animator, and one of the first guests ever to appear on this podcast. He has spent nearly 50 years developing what he calls practical spirituality, a way of working with the mind that requires no doctrine, no dogma, and no special belief system. What it does require is the willingness to get quiet enough to see what is actually there. In this conversation, w...

Jahnavi Harrison is a Grammy-nominated artist, musician, and practitioner of Bhakti Yoga who has spent her life exploring sound as a path to the divine. Raised at Bhaktivedanta Manor in England, she grew up inside one of the world's most dedicated devotional communities, and in this conversation we trace how that formation shaped her relationship with voice, identity, approval, and what it mea...

Anil Seth is a professor of cognitive and computational neuroscience at the University of Sussex and one of the world's leading researchers on consciousness. His central claim is both unsettling and liberating: we do not passively receive reality, we actively generate it. The world that appears when you open your eyes is not a transparent window onto what is actually out there. It is the brain...

Dr. William Li is a Harvard-trained physician, co-founder of the Angiogenesis Foundation, and New York Times bestselling author whose work centers on one quietly radical premise: the power to stay healthy lives inside you. In this conversation, we explore the five hardwired defense systems the body runs continuously, angiogenesis, stem cells, the gut microbiome, immunity, and DNA protection, and w...

Dr. Justin Sledge is a scholar of philosophy and Western esotericism, and the voice behind the YouTube channel Esoterica, which has grown to over a million subscribers. He has spent his career studying the traditions that history tried to erase: Gnosticism, Kabbalah, Hermeticism, witchcraft, and alchemy. What We Dive Into: 1. Classical skepticism is not about debunking or disbelief. It is about br...

Donald Robertson is a cognitive behavioral psychotherapist, author of over nine books, and one of the founding voices in the modern Stoicism movement. He has spent over 30 years studying how ancient Greek and Roman philosophy intersects with contemporary psychology, and in this conversation we start where it all begins: the maxim carved into the temple of Apollo at Delphi. Know thyself. We explore...

Dandapani is a Hindu priest who spent over ten years as a celibate monk before devoting his life to teaching the world how to master focus. His central claim is simple but unsettling: most of us are not distracted by accident, we have spent years actively practicing distraction, often more hours a day than most people practice anything else they care about. In this conversation, we unpack what it...

Ido Portal is one of the most original movement thinkers alive. He has spent decades studying the body across martial arts, acrobatics, yoga, dance, and ancient movement traditions, not to master any one of them, but to ask a deeper question: what does it actually mean to move well, and what does the body reveal when you finally start listening to it? In this conversation, we go long, covering gro...

Dr. Caroline Leaf is a cognitive neuroscientist and bestselling author who has spent over 40 years studying the relationship between the mind and the brain. At a time when neuroplasticity was still emerging as a field, she was already building clinical tools to help patients recover from brain injuries, trauma, and conditions that conventional medicine had written off as permanent. In this convers...

Join our online community ↓ https://www.knowthyselfcollective.com Todd Rose is a Harvard-trained social scientist, former high school dropout with a 0.9 GPA, and co-founder of the think tank Populace. His research centers on the gap between what people privately believe and what they publicly say, and the profound consequences of that gap for individuals and for society. This is one of those conve...

Join our online community ↓ https://www.knowthyselfcollective.com This is a compilation episode, and it draws from some of the most honest and clarifying moments across recent conversations on the show. Nine different voices, each approaching the same territory from a different angle: what it means to stop being ruled by the outside world, to understand the patterns we inherited, and to come back...

Dr. Vasant Lad is the founder of the Ayurvedic Institute and the man most responsible for bringing Ayurveda to the West. He has spent over 40 years teaching this 5,000-year-old science of life to practitioners across the world, and in this conversation, we sat down together at SoHum Mountain Healing Center in Asheville, North Carolina, where I had just completed a week-long Panchakarma. What unfol...

Dr. Mei Rui is a Yale-trained molecular biophysicist, concert pianist, and clinical researcher at MD Anderson Cancer Center, where she runs trials on the measurable effects of music on the human body. In this conversation, we explore what actually happens in the brain the moment music enters it, why the auditory system is the first sense to develop in the womb and the last to go when we die, and h...

Arthur Brooks is a Harvard professor, social scientist, and three-time New York Times bestselling author whose life's work centers on a single, urgent question: what actually makes a human life feel meaningful? In this conversation, we explore why depression and anxiety have surged since 2008, how technology has hijacked the part of the brain responsible for wonder and meaning, and what it loo...