What is our species' greatest invention? Medicine, computers, space travel? Not even close. The innovation that underlies each of our past achievements and those we still aspire to is language. Language is the ultimate invention of Homo sapiens - one that has allowed us to change the physical and social world around us in every conceivable way, and an invention that has fundamentally changed us, as well.

The ancient Greeks, more than any other early culture, have given us the template for Western civilization, as seen in their superlative achievements in the fields of architecture, political theory, philosophy, science, and art - not the least of which are their inventions of democracy and drama. In these 24 compelling lectures, Professor Garland guides you in a richly illuminating exploration of what the ancient Greeks have given us, and why they’re still important to us today.   

George Orwell was more than just a writer. He was a political and social sage who valued, above all else, individual freedom. His works aren’t just entertainment - they’re cautionary tales and red flags of warning. And if we ever hope to understand threats to freedom and how to stop them, we must learn from them. In these 24 lectures, learn how the man born as Eric Blair forged himself into a writer of international importance and renown. 

What is life? What is my place in it? What choices do these questions obligate me to make? More than a half-century after it burst upon the intellectual scene - with roots that extend to the mid-19th century - Existentialism's quest to answer these most fundamental questions of individual responsibility, morality, and personal freedom, life has continued to exert a profound attraction.

Consider these commonly held scientific beliefs: Planetary orbits are fixed ellipses; we only use 10 percent of our brains; nothing travels faster than light; a thrown object’s trajectory is a parabola. They seem correct, but they’re all misconceptions that aren’t entirely accurate. There’s much more to the story than you think. These magnificent 24 lectures are devoted to busting myths, clearing up confusion, and giving you scientific epiphanies that could change how you think about your everyday world.

In Survival Mentality: The Psychology of Staying Alive, you’ll not only explore survival skills and strategies, but you’ll also hear the stories of individuals who used those techniques to survive real-world situations. Through the details of their stories, Professor Zarse helps you identify the psychological factors that served them best.   

Recent years have seen the introduction of concepts from the new and exciting field of complexity science that have captivated the attention of economists, sociologists, engineers, businesspeople, and many others. These include tipping points, the wisdom of crowds, six degrees of separation (or Kevin Bacon), and emergence. Complexity science can shed light on why businesses or economies succeed and fail, how epidemics spread and can be stopped, and what causes ecological systems to rebalance themselves after a disaster.

Thousands of novels are published around the world every year. There are so many readily available, it would take multiple lifetimes for a single person to even read a fraction of them. But it hasn’t always been that way. While humans have always been storytellers, the novel as we recognize it today is a relatively new art form in the timeline of human culture. Of all the ways we tell stories, why has the novel become such a perennial favorite? How did the novel go from a narrative experiment with a low-brow reputation to a cultural touchstone and focal point of modern literature?

The Science of Information: From Language to Black Holes covers the exciting concepts, history, and applications of information theory in 24 challenging and eye-opening half-hour lectures taught by Professor Benjamin Schumacher of Kenyon College. A prominent physicist and award-winning educator at one of the nation’s top liberal arts colleges, Professor Schumacher is also a pioneer in the field of quantum information, which is the latest exciting development in this dynamic scientific field. 

In The Pagan World: Ancient Religions Before Christianity, you will meet the fascinating, ancient polytheistic peoples of the Mediterranean and beyond, their many gods and goddesses, and their public and private worship practices, as you come to appreciate the foundational role religion played in their lives. Professor Hans-Friedrich Mueller, of Union College in Schenectady, New York, makes this ancient world come alive in 24 lectures with captivating stories of intrigue, artifacts, illustrations, and detailed descriptions from primary sources of intriguing personalities.

Conventional wisdom suggests there is a sharp distinction between emotion and reason. Emotions are seen as inferior, disruptive, primitive, and even bestial forces. These 24 remarkable lectures suggest otherwise-that emotions have intelligence and provide personal strategies that are vitally important to our everyday lives of perceiving, evaluating, appraising, understanding, and acting in the world.

Are we alone in the universe? This is one of the most profound issues facing mankind - and one of the unresolved questions that science may finally be able to answer in this century. These 24 mind-expanding lectures reveal the cutting-edge research leading scientists to believe that life is not exclusively the domain of Earth. Professor Close offers an unparalleled look at the subject of life and the mysteries that remain.

As recently as 1990, it seemed plausible that the solar system was a unique phenomenon in our galaxy. Thanks to advances in technology and clever new uses of existing data, now we know that planetary systems and possibly even a new Earth can be found throughout galaxies near and far.

Taught by award-winning Professor Patrick Grim of the State University of New York at Stony Brook, The Philosopher’s Toolkit: How to Be the Most Rational Person in Any Room arms you against the perils of bad thinking and supplies you with an arsenal of strategies to help you be more creative, logical, inventive, realistic, and rational in all aspects of your daily life. 

The Mongol Empire was the largest empire the world has ever seen, forged by conquests across Eurasia in the 13th and 14th centuries. Yet despite the unparalleled brutality of the Mongols, they played a key role in launching civilization’s evolution into the modern world. In 24 half-hour lectures delivered by award-winning teacher and historian Craig Benjamin of Grand Valley State University, explore the paradox of the Mongols’ extreme barbarity combined with their enlightened religious attitudes and respect for high civilization, in The Mongol Empire.