But are there limits to what we can discover about our physical universe?In this very personal journey to the edges of knowledge, Marcus du Sautoy investigates how leading experts in fields from quantum physics and cosmology, to sensory perception and neuroscience, have articulated the current lie of the land. In doing so, he travels to the very boundaries of understanding, questioning contradictory stories and consulting cutting edge data.Is it possible that we will one day know everything? Or are there fields of research that will always lie beyond the bounds of human comprehension? And if so, how do we cope with living in a universe where there are things that will forever transcend our understanding?In What We Cannot Know, Marcus du Sautoy leads us on a thought-provoking expedition to the furthest reaches of modern science. Prepare to be taken to the edge of knowledge to find out if there’s anything we truly cannot know.

    Yet today, science and its practitioners have come under political attack. In this fascinating history spanning continents and centuries, historian David Wootton offers a lively defense of science, revealing why the Scientific Revolution was truly the greatest event in our history.The Invention of Science goes back five hundred years in time to chronicle this crucial transformation, exploring the factors that led to its birth and the people who made it happen. Wootton argues that the Scientific Revolution was actually five separate yet concurrent events that developed independently, but came to intersect and create a new worldview. Here are the brilliant iconoclasts—Galileo, Copernicus, Brahe, Newton, and many more curious minds from across Europe—whose studies of the natural world challenged centuries of religious orthodoxy and ingrained superstition.From gunpowder technology, the discovery of the new world, movable type printing, perspective painting, and the telescope to the practice of conducting experiments, the laws of nature, and the concept of the fact, Wotton shows how these discoveries codified into a social construct and a system of knowledge. Ultimately, he makes clear the link between scientific discovery and the rise of industrialization—and the birth of the modern world we know.

    The truth is, while metaphysics is among the oldest strands of philosophical thought—an inquiry into the very nature ofreality—metaphysics is also on the cutting edge of today’s scientific discoveries.

    Using the tools and knowledge of their field, archaeologists can now determine the nature of a sacrificial ritual, compare the visible attributes of ancient deities, and map out the orientation of a temple or tomb.Professor Hale gives you a comprehensive look at specific religious archaeological sites around the world-inside caves and crypts, through vast deserts and ancient cities, from Polynesia to Mexico to the American Midwest.Studying these breathtaking sites such as Lascaux Cave, Machu Picchu, and Easter Island, you learn the points of interest that attract the attention of archaeologists and scholars, survey the principal features unearthed during the site's excavation, discover what evidence at the site reveals about the evolution of religion, and more.By the final lap of your international journey, you'll have developed a new vision of religion and its crucial role in ancient history. You'll become more attuned to spirituality's universal elements and its unique characteristics. And you'll realize just how much credit religion deserves for remarkable sites that continue to captivate us.

    Our language even has a word—Machiavellian—that encapsulates the images those responses conjure up: An indistinct figure quietly making his way through the darkest corridors of power, hatching plots to play one rival against another A cold-blooded political liar, ready to justify any duplicity undertaken in the name of a noble end that will ultimately justify the most malignant means A coolly practical leader—amoral at best—willing to do whatever is necessary in a world governed not by ideas of right or wrong, but by solutions dictated by realpolitik.But does the Machiavelli most of us think we know bear any resemblance to the Machiavelli who lived, pondered, and wrote?According to Professor William R. Cook, a reading of Machiavelli that considers only those qualities that we today call "Machiavellian" is incomplete, and Machiavelli himself "certainly would not recognize" such sinister interpretations or caricatures of his writings and beliefs. Indeed, The Prince—on the pages of which so much of this image was built—was not even published in his lifetime.In the 24 lectures that make up Machiavelli in Context, Professor Cook offers the opportunity to meet an extraordinarily thoughtful and sincere student of history and its lessons, and to learn that there is far more to him than can be gleaned from any reading of The Prince, no matter how thorough.Although The Prince is the work by which most of us think we know Machiavelli, and although some have indeed called it the first and most important book of political science ever written, it was not, according to Professor Cook, either Machiavelli's most important work or the one most representative of his beliefs. Those distinctions belong, instead, to his Discourses on the First Ten Books of Livy, a longer work started at about the same time and which would, like The Prince, not be published until well after his death."Everyone who has seriously studied the works of Machiavelli agrees that he ... believed in the superiority of a republican form of government, defined as a mixed constitution with elements of monarchy, aristocracy, and democracy."Once we recover the context of the writing of The Prince, and analyze it along with the Discourses on the First Ten Books of Livy, it will be clear how The Prince can be read as a book designed to guide leaders in the creation—for Machiavelli, restoration—of republican government in Italy."Ultimately, Machiavelli's goal wasn't much different from ours. It was to live in a free and equal participatory society, because he believed that was the greatest way in which human beings could live and flourish."In fact, says Professor Cook, "Machiavelli's republican thought influenced the development of institutions and values both in Europe and in America."To present a complete and well-rounded picture of Machiavelli's ideas on how human societies should be organized and governed, Professor Cook sets aside much of Machiavelli's written output—which included the political work The Art of War, a biography, many letters, and even some plays—to focus on The Prince, the Discourses, and, more briefly, his Florentine Histories.In doing so, Professor Cook draws on the same qualities so evident in his previous courses for The Teaching Company: Tocqueville and the American Experience, Dante's Divine Comedy, Francis of Assisi, and St. Augustine's Confessions.Teaching in the relaxed and informal style of those courses, Professor Cook moves easily among the different disciplines so pertinent to an understanding of Machiavelli's ideas, including history, philosophy, government, and the elements of leadership. He is unfailingly clear, always provides any definitions needed to understand the material at hand, and is always ready with a touch of wit whenever that is appropriate.Because so much of our contemporary misunderstanding of Machiavelli's ideas comes from a lack of context, Professor Cook carefully sets the stage for a complete perspective of Machiavelli's world.Long before he turns to the works themselves, you'll have learned about Florence and its political history, both before and during Machiavelli's lifetime; the developing Renaissance culture of Machiavelli's time, especially as it bears on the use of ancient political thought by writers and political leaders; and Machiavelli's own life story, including his education, service to the Florentine Republic, years spent in exile south of Florence, and the ways each period of his life affected his writings.The result is a thorough grounding in the information one needs to understand and appreciate this stunningly original thinker.You'll learn, for example, what Machiavelli means when he discusses the important ideas of virtù and Fortuna.Though these are today invariably translated as virtue and fortune, Machiavelli's meanings can involve much more. Though he sometimes uses virtù in the sense we would understand today, he often uses the word—which comes from the classical Latin word for Man—as a means of describing the way one practices successful statecraft: aggressively, with no reluctance to use lies, deceit, and cruelty that may be required to maintain power, and hence the stability the people deserve.In a similar way Machiavelli uses Fortuna in a different sense than might have been used by, say, Dante when he describes the vagaries of fate over which we have no control.Instead, Machiavelli uses the adage, "Fortune is like a river." Though we cannot control fortune, which may well choose to make the river flood, a good ruler, practicing virtù, can indeed prepare for it, and thus modify its effects.You'll see how Machiavelli first became exposed to history and one of its earliest great practitioners—the Roman historian, Livy—through his own experience of Fortuna.Though printed books such as Livy's Early History of Rome were too expensive for a family like the young Machiavelli's in the 15th century, his father did own a copy. He had written the index, and a copy of the book had been part of his payment. Thus Machiavelli grew up with the volumes about which he would one day write his own most important work, Discourses on the First Ten Books of Livy.You'll be introduced to Cesare Borgia, the son of Pope Alexander VI and the man regarded as Machiavelli's model for The Prince, especially in the way his actions embodied the virtù so important to Machiavelli.Professor Cook brings this out in a shocking story of Borgia's use of a tough and merciless Spaniard—Ramiro d'Orco—to impose order and stability on the area of north central Italy known as the Romagna that had come under Borgia's rule and was beset by crime and violence.D'Orco's brutal methods had the desired effect. And when the job was completed, the local people emerged from their homes one morning to find the two halves of Ramiro d'Orco's body on opposite sides of the town square of Cesana, because d'Orco had been too tough, and Cesare Borgia needed a way to advertise further his concern for the people whose loyalty he wanted.The story also embodies, for Machiavelli, the idea that cruelty can be "well-used," just as being merciful—withholding such cruelty when a leader deems it needed—may be less than merciful in its long-term impact.Finally, you will get to see, throughout these lectures, the development of Machiavelli's reliance on history for its lessons, his role as a Renaissance Humanist thinker, and the emergence of his republican views, which still have tremendous influence today as we ask how republics start, grow, succeed, or fail.As Professor Cook notes, we are not going to agree with all of Machiavelli's answers. But his commitment to asking the right questions—to thinking, reflecting, and learning everything history has to teach us about the best ways to govern and safeguard the future—was total.

    Although valuable, the risk is that we ignore variations and end up with a skewed view of reality. In evolutionary terms, the result is a view in which humans are the inevitable pinnacle of evolutionary progress, instead of, as Stephen Jay Gould patiently argues, "a cosmic accident that would never arise again if the tree of life could be replanted." The implications of Gould's argument may threaten certain of our philosophical and religious foundations but will in the end provide us with a clearer view of, and a greater appreciation for, the complexities of our world.

    

    He shows that the scientists of ancient and medieval times not only did not understand what we understand about the world—they did not understand what there is to understand, or how to understand it. Yet over the centuries, through the struggle to solve such mysteries as the curious backward movement of the planets and the rise and fall of the tides, the modern discipline of science eventually emerged. Along the way, Weinberg examines historic clashes and collaborations between science and the competing spheres of religion, technology, poetry, mathematics, and philosophy.An illuminating exploration of the way we consider and analyze the world around us, To Explain the World is a sweeping, ambitious account of how difficult it was to discover the goals and methods of modern science, and the impact of this discovery on human knowledge and development.

    More than 2,500 years later, the issues they pondered continue to challenge, fascinate, and instruct us. Is reality stable and permanent or is it always changing? Are ethical values like justice and courage relative? Or are values "absolute"—simply and forever right and true? What is justice? What is happiness? How shall we best live our lives?An Introduction to Greek Philosophy beckons you to join this eternal discussion. For that is what this subject truly is: a conversation among thinkers that has continued through the centuries and remains accessible to us today. You find it constantly stimulating, sometimes controversial, and nearly always remarkably relevant.A Hunger for Reasons, not Myths or BeliefsProfessor David Roochnik has organized this series of 24 lectures as a "dialectical" approach (the word comes from the Greek dialegesthai: to converse). The philosophers are presented as if they were participating in a conversation. In this way, the course unfolds in a manner similar to the actual development of Greek philosophy.In this course, you study the development of Greek philosophy, meet its major thinkers, and explore the issues and ideas that concerned them. For example the first real philosophers were the Presocratics—literally, the philosophers who lived before Socrates. They included Thales of Miletus (585 B.C.E.–?), Anaximander (610–546), Anaximenes (approx. 550), Xenophanes (approx. 570) and Pythagoras (approx. 570–500).The Presocratics rejected myth and divine inspiration—such as had been embodied in the works of Homer and in Hesiod's creation story, the Theogony—as valid explanations of reality. Instead, they insisted that true understanding always requires a logos, a rational explanation (hence such English words as "psychology" and "biology").The Presocratics were concerned with issues such as identifying the arche or "Being": the thing that is the origin of all other things. They also introduced sophistic relativism, the notion that truth, goodness, and all other values were relative, depending entirely on the person or group that held them. This concept would become a major point of debate for the Greeks and for the ages.Are We Footnotes to Plato?The heroes of this course, and certainly of Greek philosophy, are Plato (429–347 B.C.E.) and his student, Aristotle (384–322 B.C.E.). Unlike the Presocratics, who wrote too little, Plato and Aristotle were prolific authors. Both argued against relativism and instead were staunch objectivists who believed that certain important values were absolutely and universally true. And both left a staggering mark on history.Alfred North Whitehead, the great 20th-century British philosopher, said, "The safest general characterization of the European philosophical tradition is that it consists of a series of footnotes to Plato." In the Middle Ages, Aristotle was held in such high esteem that he was simply known as "the philosopher."Among Plato's many contributions to philosophy is his ingenious device for the examination of ideas: his written dialogues. In them, Plato never uses his own voice. Instead, the dialogues take place among a changing cast of characters, and Socrates is the most notable among them. The effect is to invite us to take part in the conversation and, ultimately, to become philosophers.You study Plato's dialogues as well as his notion of the Forms. This was his response to relativism and proposed that every virtue and value has an absolute and perfect Form, which humans understand even before birth.Greek philosophy can be said to culminate with Aristotle, who wrote treatises on a breathtaking range of subjects. He is said to be the first to view knowledge as being divided into specific disciplines such as biology or astronomy. The university was later modeled on this approach. More than any other philosopher, Aristotle synthesized the views that preceded him.For Aristotle, one value was foremost and was contained in everything, from the tiniest organisms to the phenomena of fire to human beings: purpose. Everything has a purpose that can be recognized and objectively defined, and that gives meaning to life. You explore the details and rationale of Aristotle's teleological—or purposive—world-view, one of the most significant in history.An Invitation to ThinkIn this course, you not only learn about Greek philosophy but, to some extent, how to do it. Professor Roochnik emphasizes that Greek philosophy is ultimately not about facts or answers but about the give-and-take of ideas.By the end of these lectures, you will understand how Greek philosophy still heavily influences our view of life. We live today, Professor Roochnik maintains, at a time that is shaped by Presocratic, relativistic philosophy. Contemporary thinkers, and often the average person, have great difficulty finding objective truth or meaning in life.What have we lost in turning away from the world of Plato and Aristotle—a world where everything has a place and a purpose and life is saturated with value and meaning?On the other hand, what would we lose if we returned to that world?These are a few of the many questions that will give you ample food for thought. For the Greeks, that was the greatest feast of all.

    Foundations 2. The Epic of Gilgamesh 3. Genesis and the Documentary Hypothesis 4. The Deuteronomistic History 5. Isaiah 6. Job 7. HomerThe Iliad 8. HomerThe Odyssey 9. Sappho and Pindar 10. Aeschylus 11. Sophocles 12. Euripides 13. Herodotus 14. Thucydides 15. Aristophanes 16. Plato 17. Menander and Hellenistic Literature 18. Catullus and Horace 19. Virgil 20. Ovid 21. Livy, Tacitus, Plutarch 22. Petronius and Apuleius 23. The Gospels 24. Augustine 25. Beowulf 26. The Song of Roland 27. El Cid 28. Tristan and Isolt 29. The Romance of the Rose 30. Dante AlighieriLife and Works 31. Dante AlighieriThe Divine Comedy 32. Petrarch 33. Giovanni Boccaccio 34. Sir Gawain and the Green Knight 35. Geoffrey ChaucerLife and Works 36. Geoffrey ChaucerThe Canterbury Tales 37. Christine de Pizan 38. Erasmus 39. Thomas More 40. Michel de Montaigne 41. François Rabelais 42. Christopher Marlowe 43. William ShakespeareThe Merchant of Venice 44. William ShakespeareHamlet 45. Lope de Vega 46. Miguel de Cervantes 47. John Milton 48. Blaise Pascal 49. Molière 50. Jean Racine 51. Sister Juana Inés de la Cruz 52. Daniel Defoe 53. Alexander Pope 54. Jonathan Swift 55. Voltaire 56. Jean-Jacques Rousseau 57. Samuel Johnson 58. Denis Diderot 59. William Blake 60. Johann Wolfgang von Goethe 61. William Wordsworth 62. Jane Austen 63. Stendhal 64. Herman Melville 65. Walt Whitman 66. Gustave Flaubert 67. Charles Dickens 68. Fyodor Dostoevsky 69. Leo Tolstoy 70. Mark Twain 71. Thomas Hardy 72. Oscar Wilde 73. Henry James 74. Joseph Conrad 75. William Butler Yeats 76. Marcel Proust 77. James Joyce 78. Franz Kafka 79. Virginia Woolf 80. William Faulkner 81. Bertolt Brecht 82. Albert Camus 83. Samuel Beckett 84. ConclusionListening Length: 42 hours and 55 minutes

    Just about everyone has at least heard of Albert Einstein's formulation of 1905, which came into the world as something of an afterthought. But far fewer can explain his insightful linkage of energy to mass. David Bodanis offers an easily grasped gloss on the equation. Mass, he writes, "is simply the ultimate type of condensed or concentrated energy," whereas energy "is what billows out as an alternate form of mass under the right circumstances." Just what those circumstances are occupies much of Bodanis's book, which pays homage to Einstein and, just as important, to predecessors such as Maxwell, Faraday, and Lavoisier, who are not as well known as Einstein today. Balancing writerly energy and scholarly weight, Bodanis offers a primer in modern physics and cosmology, explaining that the universe today is an expression of mass that will, in some vastly distant future, one day slide back to the energy side of the equation, replacing the "dominion of matter" with "a great stillness"--a vision that is at once lovely and profoundly frightening. Without sliding into easy psychobiography, Bodanis explores other circumstances as well; namely, Einstein's background and character, which combined with a sterling intelligence to afford him an idiosyncratic view of the way things work--a view that would change the world. --Gregory McNamee

    The answer to this age-old riddle is universally relevant to our lives. The implications of our views on it can affect everything from small choices we make every day to our perspective on criminal justice and capital punishment. From the Stoics to Boethius, from Kant to Hume, from Sartre to contemporary philosophers, great minds have puzzled over this debate for centuries.Now you can learn the intriguing details of this fundamental philosophical question with Great Philosophical Debates: Free Will and Determinism, 24 fascinating lectures by Shaun Nichols, award-winning Professor of Philosophy and Cognitive Science at the University of Arizona."The Great Courses.com

    Each part contains six audio tapes and a booklet.

    While not every story is concerned with the hard science behind space travel and other futuristic ventures, fiction can give listeners an amazing insight into what people could be capable of and what people dream of doing.In the 10 lectures of The Science of Sci-Fi: From Warp Speed to Interstellar Travel, Professor Erin Macdonald interweaves real science and the achievements of the imagination to reveal the truth that underlies favorite stories and sheds light on what the future may hold. From faster-than-light travel to journeys through time itself, science fiction makes humanity seem limitless. So, what scientific boundaries are people pushing against while seeking to fly among the stars?Listening Length: 3 hours and 59 minutes

    Now, let an expert professor lead you in a panoramic exploration of our monetary and financial systems, their inner workings, and their crucial role and presence in your world. As a guiding theme of these 36 content-rich lectures, you observe the ways in which economies require efficient and evolving financial institutions and markets to fulfill their potential.