Yet all too often, we're exposed to information and techniques that promise quick and easy results but can be harmful to your overall health: crash diets, experimental medications, ever-changing studies on what you should eat more or less of, and more. It can be confusing to dig through the mass of hype, myth, and misconceptions about good nutrition habits. So in the face of potentially misleading information and aids, where can you find the key to nutritional success?The answer: in understanding the concepts, practices, and science behind good nutrition. Once you master the intricate—and undeniably captivating—interaction between what you eat and its effect on your body and mind, you unlock a powerful and scientifically proven tool to use in the quest for maintaining or improving your personal health.Nutrition Made Clear is your opportunity to finally sort through nutrition misconceptions and replace them with hard science you can understand. In 36 in-depth lectures taught by dietitian and award-winning Professor Roberta H. Anding, you explore the fundamentals of good nutrition and get a practical and personal guide to applying these fundamentals to your unique lifestyle. Designed to appeal to anyone at any age, this course is an invaluable source of medically backed, statistically proven information about the guidelines for healthy eating and living.

    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.

    And you'll also learn the "rules of the game" - the forces that drive those particles and the ways in which they interact - that underlie the workings of the universe.The lectures have been designed to be enriching for everyone, regardless of scientific background or mathematical ability. Virtually all you'll need as you enter this fascinating world are your curiosity, common sense, and, as Professor Pollock notes, "an open mind for the occasional quantum weirdness." As you move through the lectures, you'll also gain a knowledge of how those particles fit into perhaps the greatest scientific theory of all time: the Standard Model of particle physics; a grasp of key terms like "gauge symmetry," "quantum chromodynamics," and "unified quantum field Theory;" and an appreciation of how particle physics fits in with other branches of physics - including cosmology and quantum mechanics - to create our overall understanding of nature.

    Modern science demonstrates that this mental hardwiring, traceable to the survival needs of our earliest ancestors, is at the root of many of the psychological and behavioral problems that we face today.For thousands of years, people have used mindfulness practices—techniques to develop awareness of present experience with acceptance—to deal effectively with a wide range of life challenges. And, a large and fascinating body of scientific research now validates the remarkable benefits of mindfulness practice for psychological as well as physical health.But how exactly does mindfulness work, in scientific terms? How can understanding the science and practice of mindfulness improve everyday life? And how can the human brain, whose very functioning gives rise to so many of the problems we struggle with, actually provide a solution?Now, in the 24 fascinating lectures of The Science of Mindfulness, Professor Ronald D. Siegel, a clinical psychologist on the faculty of Harvard Medical School, reveals the science behind mindfulness in compelling detail and demonstrates its application to an extraordinary range of human problems—psychological, social, and medical. You’ll closely examine the neurobiology involved, leaving you with a clear knowledge of the science underlying ancient practices that are now profoundly influencing the contemporary world. And you’ll learn many practical ways you can use mindfulness techniques in your own life.

    Lecture 1. The first encounter -- Lecture 2. Empire builders : the Persians -- Lecture 3. Intrepid voyagers : the Greeks -- Lecture 4. The Ionian revolt -- Lecture 5. From Mount Athos to Marathon -- Lecture 6. Xerxes prepares for war -- Lecture 7. The Athenians build a fleet -- Lecture 8. Heroes at the pass -- Lecture 9. Battle in the straits -- Lecture 10. The freedom fighters -- Lecture 11. Commemorating the great war -- Lecture 12. Campaigns of the Delian League --Part 2. Lecture 13. Launching a golden age -- Lecture 14. Herodotus invents history -- Lecture 15. Engineering the fall of Athens -- Lecture 16. Cyrus, Xenophon, and the ten thousand -- Lecture 17. The march to the sea -- Lecture 18. Strange bedfellows -- Lecture 19. The Panhellenic dream -- Lecture 20. The rise of Macedon -- Lecture 21. Father and son -- Lecture 22. Liberating the Greeks of Asia -- Lecture 23. Who is the great king? -- Lecture 24. When east met west.

    A great vocabulary can enhance your speaking, writing, and even thinking skills. This course will boost your vocabulary, whether you want to enhance your personal lexicon, write or speak more articulately in professional settings, or advance your knowledge of the English language. For anyone who has ever grasped for the perfect word at a particular moment, this course provides a research-based and enjoyable method for improving your vocabulary. Building a Better Vocabulary offers an intriguing look at the nuts and bolts of English, teaches you the etymology and morphology - or the history and structure - of words, and delves into the cognitive science behind committing new words to long-term memory. By the end of the 36 enjoyable lectures, you will have a practical framework for continuing to build your vocabulary by discovering new words and fully mastering the nuances of familiar ones. If you are an avid reader, you may have previously encountered some of the words in this course. But even the most voracious reader will be surprised and delighted by these eye-opening lectures, which delve into the building blocks of the English language and reveal intriguing new nuances to words you thought you knew well. These lectures will kindle a passion for the process by which words are created and for the beauty of the words you read, speak, and hear every day.

    Each part contains six audio cassettes and course guidebook in a clamshell case.

    From liberty to democracy to community, the terms and concepts originated by political philosophers are ingrained in our global consciousness. Yet many of us have an incomplete picture of how these ideas developed and, quite possibly, a skewed perception of their intentions and implications.This highly relevant course sheds light on the labyrinth of Western political and social theory, as well as its influence on modern history. Guided by an award-winning professor of philosophy and author, these eye-opening lectures reveal how political philosophers, in responding to the societal problems and changing conditions of their day in revolutionary ways, created virtual blueprints of action for leaders. You'll gain not only the tools to comprehend the omnipresent language of politics, but a thorough understanding of the wellspring of thought that has emerged over centuries of political philosophy and the intellectual origins of major historical movements and events.Throughout, questions of democracy, freedom, and distributive justice are addressed, and revolutionary figures who have left an indelible mark on history - from Niccolo Machiavelli to Ayn Rand - are encountered.By the conclusion of lecture 36, you will have the context necessary to appreciate the evolution of a myriad of political ideas, including hot-button topics of today such as libertarianism, neoconservatism, feminism, and environmentalism.

    The issues Professor Dalton addresses in these lectures - and in Western political theory generally - fall into three sets of fundamental questions you'll get to unpack. The first set involves the essential characteristics of human nature and the good society. The second focuses on the intricate relationship between the individual and society. And the final set of questions involves theories about change.Through these lectures and their historical case studies, you'll be able to identify the fundamental questions and concerns that shape classical and modern political theory:Describe the influence of one's understanding of human nature upon one's vision of the good society.Compare and contrast the views of theorists regarding the purpose of the state, the relationship between politics and ethics, and the qualifications for exercising political power.Discuss views of leading political theorists regarding the meaning of freedom, the sources of legitimate political authority, and the obligations of individuals to the state or society, and more.

    CBT illuminates the links between thoughts, emotions, behaviors, and physical health and uses those connections to develop concrete plans for self-improvement. Built on a solid foundation of neurological and behavioral research, CBT is an approach almost anyone can use for promoting greater mental health and improving quality of life. In 24 engaging half-hour lectures, you'll build a robust and effective self-improvement toolkit with the expert guidance of Professor Satterfield of the University of California, San Francisco. You will explore CBT's roots in Socratic and stoic philosophy, build a toolkit of CBT techniques, and hear about the latest research about its outcomes. Additionally this intriguing and practical course allows you to take on the role of medical student, physician, psychologist, and patient. Throughout the course you'll explore issues that cause people to seek out therapy. In some cases you'll get to hear Dr. Satterfield working with a patient, and in others you'll be delving into research to find what causes issues and how CBT helps to resolve them. Everyone has something about their life that they would like to improve. With the tools in CBT and the desire to make your situation better, you can create lasting change in your life.

    And with the advent of modern science, great minds have turned to testing and experimentation rather than mere thought as a way of approaching and grappling with some of the universe's most pressing and vexing dilemmas. So what is our latest picture of some of the most inexplicable features of the universe? What still remains to be uncovered? What are some of the next avenues of exploration for today's chemists, physicists, biologists, and astronomers? Pondering the answers to these and other questions is a great way to appreciate the grandeur and complexity of the world around you, better understand and discuss news and developments in science, and spark further interest in some of science's many exciting areas of study. "We know a lot about the universe. But there's even more that we don't know,"says astrophysicist and Professor Neil deGrasse Tyson, director of the Hayden Planetarium, an award-winning lecturer, and one of the world's foremost experts on the secrets of the universe. And his course The Inexplicable Universe: Unsolved Mysteries is the perfect gateway into this mind-bending and eye-opening subject. Each of these six self-contained lectures is a marvelous journey to the frontiers of the known (and unknown) universe and introduces you to tantalizing questions being addressed by the world's top scientists. Undeniably engaging and fascinating, this lecture series is a wonderful entrée to scientific pursuits that lie at the very heart of the history and nature of our universe. An Informed Scientific Conversation Central to The Inexplicable Universe is the way it takes you deep into hidden layers of the universe in a manner that is extremely accessible. Rather than a stern lecture given before a podium complete with confusing mathematics, Professor Tyson's lectures have the feel of an informed conversation that manages to be both thorough and easy to grasp. With each of the inexplicable mysteries he lays bare for you, Professor Tyson introduces you to the history behind it, lays out the science that has helped us grasp it, explains what researchers have discovered to date, and reveals what we have yet to discover. And while the topics explore subjects in everything from quantum mechanics to cosmology to string theory, you'll never feel overwhelmed by what you're learning. In fact, you're more likely to find yourself intrigued by just how much we know-and curious about what the near future will possibly reveal. Explore Fascinating Territory So what territory will you chart in this course? Here are some of the inexplicable ideas you'll investigate in these lectures. Neutrinos: Discovered in 1956, these fast-moving, ghostlike particles are made in abundance in the sun's core. They hardly interact with matter; it takes a light-year's worth of lead (5.8 trillion miles) to stop a neutrino. Not only that, but 65 billion neutrinos pass through every centimeter of your body that's facing the sun every second of every day. String theory: This astounding theory offers the hope of unifying all the particles and forces of physics. In the past several decades since the dawn of string theory, it's been imagined that all the fundamental particles we see and measure are just the manifestation in our dimension of strings vibrating in higher dimensions and at different frequencies. Quantum foam: This idea posits that when the fabric of space and time is so tightly curved on itself, space-time is less a smooth curve and more like the froth on a latte. In this state of matter and energy, quantum fluctuations can spawn entire universes, each with slightly different laws of physics within them! In addition, you'll also get a peek at what it would be like to travel through a black hole, ponder the possibility that life on Earth originated in debris from Mars, probe the supposed existence of multiple universes, and even imagine the possible end of the universe itself. A One-on-One Chat with a Renowned Science Educator Professor Tyson is renowned throughout the scientific community and the media for his vast knowledge, his penetrating insights, and his amazing ability to make even the most intimidating areas of science accessible, engaging, and-most of all-enjoyable. He brings the same inviting tone and sharp intellect to The Inexplicable Universe as he does to his range of media appearances on popular television programs. Due to its unique subject matter The Inexplicable Universe takes a highly visual approach. Many of the fascinating subjects in the course, such as black holes, string theory, and multiple universes are best demonstrated visually and Professor Tyson's lectures feature expertly crafted computer animations, explanatory diagrams, high resolution photographs, and other instructive visual elements. In order to better explain to you some of the grand, intricate ideas being discussed, Professor Tyson personally interacts with many of these animations and graphics using greenscreen technology. Please note that, due to the highly visual nature of The Inexplicable Universe, the course does not come with a guidebook. We did not believe a simple book could adequately convey the information in the course, and rather than make a guidebook that did not do the course justice, we decided to not offer one. However, we believe that you will be very excited by how we produced this course and will find it to be an enriching and fulfilling experience in your educational journey.

    But what was it like to actually live in those extraordinary times? Now you can find out.These 36 lectures provide a different perspective on the society and culture of the Middle Ages - one that entrenches you in the daily human experience of living during this underappreciated era. Drawing on history, literature, the arts, technology, and science, these lectures will deepen the way you understand not only the Middle Ages but everything that came afterward: From the Renaissance, to the Enlightenment, to your own world.Filled with amazing insights, this series brings you closer than ever before to life as it was lived and felt. You'll meet the likes of William Caxton, England's first printer who not only printed and distributed a variety of works but also often had to translate them himself; learn about Hugh of Payns and the role of his Knights Templar - organized for the protection of pilgrims traveling to Jerusalem - in the creation of the first modern bank; see how communities dealt with marriage in a time when the church had not yet drawn this institution into its orbit; and much more.Rich with information and period detail (including revealing examples of medieval literature from the English, French, Norse, Icelandic, and Italian worlds), these lectures will dramatically increase your understanding of how lives in the Middle Ages were really lived.

    What makes evolution such a profoundly provocative concept, so convincing to most scientists, yet so socially and politically divisive? The Theory of Evolution: A History of Controversy is an examination of the varied elements that so often make this science the object of strong sentiments and heated debate. Professor Edward J. Larson leads you through the "evolution" of evolution, with an eye toward enhancing your understanding of the development of the theory itself and the roots of the controversies that surround it. In these lectures you will: Explore pre-Darwinian theories of the origins of life, from Genesis and the ancient Greeks to such 18th- and 19th-century scientists as Georges Cuvier and Chevalier de Lamarck Follow the life and work of Charles Darwin, and the impact of his 1859 masterpiece, On the Origin of Species. Darwin's theory of evolution by natural selection was immediately recognized as a threat to traditional religion, but was quickly accepted (the first printing of Origin of Species sold out on the first day) Examine the history of evolutionary science after Darwin-a fascinating story that includes the "rediscovery," after 35 years, of Gregor Mendel's work on genetic variation; the unearthing of prehominid, or early human, fossils by Raymond Dart in 1925 and the Leakey family in the 1950s; and the confusion created by the sensational, but later discredited, discovery of Piltdown Man-a fake evolutionary "missing link"-in 1912 Trace the history of religious objections to evolution, from those of Darwin's own time to contemporary efforts to teach creation science in American schools. This includes a detailed discussion of the famous Scopes "monkey trial," which in fact was a staged media event, designed to create publicity for the town of Dayton, Tennessee. Are Our Genes more Important than We Are? This course makes it clear that the history of controversy surrounding evolution is not limited to a dispute between science and religion. Even within the scientific community, the fine details of the theory of evolution have long been a matter of passionate dispute. In fact, in the last third of the 19th century, the principal objections were scientific, not religious. Although the fossil record was a key piece of evidence for evolution, it had gaps that could be used to argue against the theory. And both proponents and critics wondered how altruistic human qualities such as love and generosity could possibly have evolved through the competitive, often harsh, processes that Darwin described. From Professor Larson's presentation, you will learn that new ideas in evolution science have often created new controversies. For example, is it truly possible, as some scientists now maintain, that humans exist merely to ensure the survival of their genes? Such research has created disagreement among scientists about the degree to which evolution drives human behavior, and has further alienated many segments of the public. Evolution's "Dark Side": Social Darwinism In these lectures, you will review perhaps the most sinister controversy associated with the theory of evolution: social Darwinism. From the beginning, the Darwinian theory of evolution has been linked to economic and political views. Thomas Malthus's theories of population growth and competition for limited resources even inspired Darwin's thinking on natural selection. Unfortunately, later supporters of evolution carried this line of thinking too far. Beginning with Herbert Spencer, who coined the term "survival of the fittest," Darwin's ideas were used as evidence for a wide range of social beliefs, from laissez-faire capitalism to racism, colonialism, and, in perhaps the worst application, Nazism. In the United States, social Darwinism has served as a basis for the creation of IQ tests and for eugenics programs that resulted in the forced sterilization of thousands of mentally ill or retarded Americans. Unsettling Implications: The Growing Gulf Between Science and Religion During the late 19th century, largely through the efforts of scientists who sought to integrate evolutionary science with spiritual belief, evolution was widely accepted by the religious community in the United States. Today, this is hardly the case. In his last four lectures, Professor Larson examines the trends that have, since 1920, widened the gulf between science and religion. These include an increase in fundamentalist Protestantism, the weakening of liberal Protestantism as a counteracting force, and the growing power of a firmly conservative South. In the 1960s, federally funded neo-Darwinian textbooks provoked a conservative backlash. Beginning with the publication of Henry M. Morris's The Genesis Flood, efforts to gain equal time for the teaching of creation science, based on biblical teachings, gathered strength. Rebuffed by the courts, creationism continues to thrive through the increasing numbers of private Christian schools and through home schooling. The growing gulf between science and religion has unsettling implications for our society. Large segments of the American population reject the naturalism of current evolutionary thinking. Nine of 10 Americans believe in spiritual causes for life, with only 10 percent accepting the purely naturalistic explanations espoused by evolution. Strikingly, these statistics are almost exactly the opposite among the scientific community. A Pulitzer Prize-Winning Teacher As both a historian of science and a professor of law, Professor Edward J. Larson brings exceptional qualifications to this subject. His book, Summer for the Gods: The Scopes Trial and America's Continuing Debate Over Science and Religion, won the 1998 Pulitzer Prize in History. His analysis provides an invaluable perspective on the volatile history of what is arguably the single most significant idea of modern times.

    24 Lectures / 30 minutes per lecture.1. Why the Middle Ages?2. Demography and the Commercial Revolution3. Those Who Fought—The Nobles4. The Chivalric Code5. Feudalism6. Those Who Worked—The Peasants7. Those Who Worked—The Townspeople8. Women in Medieval Society9. Those Who Prayed—The Monks10. Francis of Assisi and the Franciscan Movement11. Heretics and Heresy12. The Medieval Inquisitions13. Jews and Christians14. The Origins of Scholasticism15. Aquinas and the Problem of Aristotle16. The First Universities17. The People's Crusade18. The Conquest of Jerusalem19. The Norman Conquest20. Philip II of France21. Magna Carta22. Empire versus Papacy23. Emperor Frederick II24. Looking Back, Looking Forward

    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.