One day, 14-year-old Sophie Amundsen comes home from school to find two notes in her mailbox, with one question on each: "Who are you?" and "Where does the world come from?" From that irresistible beginning, Sophie becomes obsessed with questions that take her far beyond what she knows of her Norwegian village. Through those letters, she enrolls in a kind of correspondence course, covering Socrates to Sartre, with a mysterious philosopher, while receiving letters addressed to another girl.

We live in a culture of casual certitude. This has always been the case, no matter how often that certainty has failed. Though no generation believes there's nothing left to learn, every generation unconsciously assumes that what has already been defined and accepted is (probably) pretty close to how reality will be viewed in perpetuity. And then, of course, time passes. Ideas shift. Opinions invert. What once seemed reasonable eventually becomes absurd, replaced by modern perspectives that feel even more irrefutable and secure - until, of course, they don't.

Sam Harris—neuroscientist, philosopher, and bestselling author—has been exploring some of the most important questions about the human mind, society, and current events on his podcast, Making Sense. For Harris, honest conversation, no matter how difficult or controversial, represents the only path to moral and intellectual progress. This audiobook includes talks with Daniel Kahneman, Timothy Snyder, Nick Bostrom, and Glen Loury, on topics that range from the nature of consciousness and free will, to politics and extremism, to living ethically.

The author of the number-one New York Times best seller Proof of Heaven teams up with the sages of times past, modern scientists, and with ordinary people who have had profound spiritual experiences to show the reality of heaven and our true identities as spiritual beings. When Proof of Heaven was published, some people contacted Dr. Eben Alexander to argue that his near death experience was impossible. But many more have written to say his story resonated with them in profound ways.

After being diagnosed with a brain tumor, writer John Gallo spends his time confronting his lifelong sense of fraudulence, regret, and self-misunderstanding, all while loosely chronicling the development of his cancer. Formed out of a collection of journal-like essays posthumously discovered on his computer, we follow Gallo’s mind as he ruminates on concepts and theories of time, being, death, anxiety, creativity, despair, isolation, happiness, wonder, absurdity, and other eternal themes of life — big and small.

One of our greatest philosophers and scientists of the mind asks where the self comes from - and how our selves can exist in the minds of others. I Am a Strange Loop argues that the key to understanding selves and consciousness is the "strange loop" - a special kind of abstract feedback loop inhabiting our brains. The most central and complex symbol in your brain is the one called "I". The "I" is the nexus in our brain, one of many symbols seeming to have free will and to have gained the paradoxical ability to push particles around, rather than the reverse.

"The central miracle asserted by Christians is the Incarnation. They say that God became Man. Every other miracle prepares the way for this, or results from this." This is the key statement of Miracles, in which C. S. Lewis shows that a Christian must not only accept but rejoice in miracles as a testimony of the unique personal involvement of God in his creation.

In Sit Down and Shut Up, Brad Warner tackles one of the great works of Zen literature, the Shobogenzo by 13th century Zen master Dogen. Illuminating Dogen's enigmatic teachings in plain language, Warner intertwines sharp philosophical musings on sex, evil, anger, meditation, enlightenment, death, God, sin, and happiness with an exploration of the power and pain of the punk rock ethos.

A “flip,” writes Jeffrey J. Kripal, is “a reversal of perspective,” “a new real,” often born of an extreme, life-changing experience. The Flip is Kripal’s ambitious, visionary program for unifying the sciences and the humanities to expand our minds, open our hearts, and negotiate a peaceful resolution to the culture wars.

"Imagine if a Martian showed up, all big ears and big nose like a child’s drawing, and he asked to be baptized. How would you react?" Pope Francis posed that question - without insisting on an answer! - to provoke deeper reflection about inclusiveness and diversity in the Church. But it's not the first time that question has been asked.

In the last decade there has been a revolution in our understanding of the minds of infants and young children. We used to believe that babies were irrational, and that their thinking and experience were limited. Now Alison Gopnik - a leading psychologist and philosopher, as well as a mother - explains the cutting-edge scientific and psychological research that has revealed that babies learn more, create more, care more, and experience more than we could ever have imagined.

In this collection of lectures that Richard Feynman originally gave in 1963, unpublished during his lifetime, the Nobel Prize-winning physicist discusses several of the ultimate questions of science. What is the nature of the tension between science and religious faith? Why does uncertainty play such a crucial role in the scientific imagination? Is this really a scientific age?

This is not your typical Zen book. Brad Warner, a young punk who grew up to be a Zen master, spares no one. This bold new approach to the "Why?" of Zen Buddhism is as strongly grounded in the tradition of Zen as it is utterly revolutionary. Warner's voice is hilarious, and he calls on the wisdom of everyone from punk and pop culture icons to the Buddha himself to make sure his points come through loud and clear.

What is belief, and why is it so important? Where did it come from, and what does it do? This book answers all of those questions and more! David G. McAfee, an author who studies religions, teamed up with writer and illustrator Chuck Harrison to create The Belief Book. No matter how old or how young you are, this easy-to-listen-to book can help you learn more about religions, gods, and beliefs in general. It will also teach you about something called the scientific method, which is how we learn new things about the world!

The experience of meaningful coincidences is universal. They are reported by people of every culture, every belief system, and every time period. Synchronicity examines the evidence for the human influence on the meaningfulness of events, and the way the modern computational model of the mind predicts how we create meaning. It demonstrates that these events, based on the activity of the mind, are caused by the person who perceives them.