The Great Courses (Firm)

Logic is intellectual self-defense against such assaults on reason and also a method of quality control for checking the validity of your own views. But beyond these very practical benefits, informal logic—the kind we apply in daily life—is the gateway to an elegant and fascinating branch of philosophy known as formal logic, which is philosophy’s equivalent to calculus. Formal logic is a breathtakingly versatile tool. Much like a Swiss army...

Quantum mechanics gives us a picture of the world so radically counterintuitive that it has changed our perspective on reality itself. In Quantum Mechanics: The Physics of the Microscopic World, award-winning Professor Benjamin Schumacher gives you the logical tools to grasp the paradoxes and astonishing insights of this field.

First, consider images of the Arthurian legend familiar in Western culture, and their relationship to historical reality. Trace the history of post-Roman Britain, the large-scale invasions of the Anglo-Saxons, and evidence that a single, extraordinary individual rose from the chaos to lead and save his people..

The clue is so imperative to the successful mystery story that there are few elements more subject to rules and regulations. Yet for all the requirements around how, when, and why to present clues, this narrative element is highly subjective. In this lecture, you’ll learn how clues are used to help, hinder, mislead, and solve mysteries, for both the characters and the audience.

First, consider the huge historical significance of the Christian belief in Jesus's divinity, in terms of its effects on Western civilization as well as today's world. Learn about different scholarly views of the historical Jesus, and trace the remarkable diversity of early Christian thought regarding Christian identity, scripture, and theological understandings of Jesus.

Since no human can touch the sky, any unexpected celestial event must be a divine omen. Reenter this primordial state of mind, seeing eFilmclipses and comets the way they were perceived before the advent of modern science. In the course of this investigation, discover why comets became more feared than eFilmclipses.

Over time, Christian thought pushed the origin of Jesus's divinity further and further back in history. Trace this development by looking at views of Jesus in the New Testament Gospels. Focus on the Gospels of Mark, Matthew, and Luke, noting their differing versions of when Jesus became the Son of God.

Explore the power of abduction, a form of induction also known as inference to the best explanation, that is used not only by philosophers, but also by doctors to make medical diagnoses and scientists to construct theories. Even Sherlock Holmes—the master of deduction—really practiced abductive inference.

Science fiction battled a long-standing bad reputation, born out of the “pulp era” in history. Survey the rise of pulp science fiction through serials, magazines, and short stories at the turn of the 20th century and through the 1950s. You’ll gain an appreciation of the obstacles the genre had to overcome through this period in history as Professor Wolfe highlights key authors who contributed to—and helped remedy—the pulp reputation..

Continue your study of the principles of tai chi with the art's most fundamental concept: when you're in harmony and balance, everything works better. Consider how this applies to your body, your mind, and your relationships with others. Learn the first two movements of the Yang-style 40 form: commencing and grasp the bird's tail.