In Timaeus, he gives a thorough account of the world in which we live, describing a cosmos composed of four elements earth, air, fire and water which combine to give existence to all things. An exploration of the origins of the universe, life and humanity, which outlines not just physical laws but also metaphysical and religious principles, it remained a paradigm of science for two thousand years. The mysterious preamble to Timaeus contains the first account in literature of Atlantis, while the fragmentary Critias, unfinished by its author, provides a spellbinding description of the lost continent's ideal society, which Critias asserts was created by the god-like children of Poseidon himself.

    A masterpiece of technical exposition, it was the basic textbook of astronomy for more than a thousand years, and still is the main source for our knowledge of ancient astronomy. This translation, based on the standard Greek text of Heiberg, makes the work accessible to English readers in an intelligible and reliable form. It contains numerous corrections derived from medieval Arabic translations and extensive footnotes that take account of the great progress in understanding the work made in this century, due to the discovery of Babylonian records and other researches. It is designed to stand by itself as an interpretation of the original, but it will also be useful as an aid to reading the Greek text.

    astronomers, and Aristotle. G. E. R. Lloyd also investigates the relationships between science and philosophy and science and medicine; he discusses the social and economic setting of early Greek science; and he analyzes the motives and incentives of the different groups of writers.

    We seek to contemplate and know its nature and substance'For the Pre-Socratic philosophers the soul was the source of movement and sensation, while for Plato it was the seat of being, metaphysically distinct from the body that it was forced temporarily to inhabit. Plato's student Aristotle was determined to test the truth of both these beliefs against the emerging sciences of logic and biology. His examination of the huge variety of living organisms - the enormous range of their behaviour, their powers and their perceptual sophistication - convinced him of the inadequacy both of a materialist reduction and of a Platonic sublimation of the soul. In De Anima, he sought to set out his theory of the soul as the ultimate reality of embodied form and produced both a masterpiece of philosophical insight and a psychology of perennially fascinating subtlety.Hugh Lawson-Tancred's masterly translation makes De Anima fully accessible to modern readers. In his introduction, he places Aristotle's theories at the heart of contemporary debates on the philosophy of life and being.

    In addition to fieldwork and traditional methods, paleoanthropologists and archaeologists now draw upon genetics and other cutting-edge scientific techniques. In fifty chapters, Prehistoric Investigations tells the story of the many thought-provoking discoveries that have transformed our understanding of the distant past.

    However, it is one of the basic principles of quantum theory, the most widely accepted explanation of the subatomic world - and one of the fascinating subjects dealt with in Equations of Eternity.

    ca. 165), a convert to Christianity from traditional Greek religion. The Dialogue purports to be a two-day dialogue that took place in Asia Minor between Justin and Trypho, a Hellenized Jew. Justin argues extensively on the basis of lengthy Old Testament quotations that Christ is the Messiah and God incarnate, and that the Christian community is the new Israel. In the beginning of the work Justin recounts how he converted to Christianity.The Dialogue remains of great, and varying, interest. It has important information on the development of Jewish-Christian relations, on the development of the text of the Old Testament, and on the existence and character of the early Jewish Christian community. Justin's story of how he became a Christian is one of our earliest conversion accounts. The Dialogue is an ideal textbook for classes investigating the development of religion in Late Antiquity since it touches on many aspects of religion in the Roman Empire.This edition of the Dialogue with Trypho is a revision of Thomas B. Falls's translation, which appeared in Fathers of the Church, vol. 6. Thomas P. Halton has emended the translation in light of the 1997 critical edition by Miroslav Marcovich, and he has provided extensive annotation to recent scholarship on the Dialogue. Michael Slusser has edited the volume to bring it into conformity with the new Selections from Fathers of the Church series.ABOUT THE TRANSLATOR:Thomas P. Halton is Professor Emeritus of Greek and Latin at the Catholic University of America. He has served as the general editor of the Fathers of the Church series since 1983.

    It is so important that it provides the fundamental underpinning of all modern sciences. Without it, we'd have no nuclear power or nuclear bombs, no lasers, no TV, no computers, no science of molecular biology, no understanding of DNA, no genetic engineering—at all. John Gribbin tells the complete story of quantum mechanics, a truth far stranger than any fiction. He takes us step-by-step into an ever more bizarre and fascinating place—requiring only that we approach it with an open mind. He introduces the scientists who developed quantum theory. He investigates the atom, radiation, time travel, the birth of the universe, superconductors and life itself. And in a world full of its own delights, mysteries and surprises, he searches for Schrödinger's Cat—a search for quantum reality—as he brings every reader to a clear understanding of the most important area of scientific study today—quantum physics.

    It provides a wide survey of Greek science, metaphysics, and moral and political philosophy, from their roots in myth to the philosophers and Sophists of the fifth century. A comprehensive selection of fragments and testimonia, translated by the author, is presented in the context of a thorough and accessible discussion. An introductory chapter deals with the sources of Presocratic and Sophistic texts and the special problems of interpretation they present.In its second edition, this work has been updated and expanded to reflect important new discoveries and the most recent scholarship. Changes and additions have been made throughout, the most significant of which are found in the chapters on the Pythagoreans, Parmenides, Zeno, Anaxagoras, and Empedocles, and the new chapter on Philolaus. The translations of some passages have been revised, as have some interpretations and discussions. A new Appendix provides translations of three Hippocratic writings and the Derveni papyrus.

    He explores the new paradigm (replacing the centuries-old Newtonian view of the universe) that recognizes the collective and holistic properties of physical systems and the power of self-organization. He casts the laws in physics in the role of a "blueprint," embodying a grand cosmic scheme that progressively unfolds as the universe develops.Challenging the viewpoint that the physical universe is a meaningless collection particles, he finds overwhelming evidence for an underlying purpose: "Science may explain all the processes whereby the universe evolves its own destiny, but that still leaves room for there to be a meaning behind existence."

    

    Our universe’s “beginning” is at an end. What does this have to do with us here on Earth? Our lives are about to be dramatically shaken again—as altered as they were with the invention of the clock, the steam engine, the railroad, the radio and the Internet.In The End of the Beginning, Adam Frank explains how the texture of our lives changes along with our understanding of the universe’s origin. Since we awoke to self-consciousness fifty thousand years ago, our lived experience of time—from hunting and gathering to the development of agriculture to the industrial revolution to the invention of Outlook calendars—has been transformed and rebuilt many times. But the latest theories in cosmology— time with no beginning, parallel universes, eternal inflation—are about to send us in a new direction.Time is both our grandest and most intimate conception of the universe. Many books tell the story, recounting the progress of scientific cosmology. Frank tells the story of humanity’s deepest question— when and how did everything begin?—alongside the story of how human beings have experienced time. He looks at the way our engagement with the world— our inventions, our habits and more—has allowed us to discover the nature of the universe and how those discoveries, in turn, inform our daily experience.This astounding book will change the way we think about time and how it affects our lives.

    

    Diogenes Laertius carefully compiled his information from hundreds of sources and enriches his accounts with numerous quotations.Diogenes Laertius lived probably in the earlier half of the 3rd century CE, his ancestry and birthplace being unknown. His history, in ten books, is divided unscientifically into two 'Successions' or sections: 'Ionian' from Anaximander to Theophrastus and Chrysippus, including the Socratic schools; 'Italian' from Pythagoras to Epicurus, including the Eleatics and sceptics. It is a very valuable collection of quotations and facts.The Loeb Classical Library edition of Diogenes Laertius is in two volumes.

    Democritus's atomic theory of matter, Zeno's dazzling "proofs" that motion is impossible, Pythagorean insights into mathematics, Heraclitus's haunting and enigmatic epigrams-all form part of a revolution in human thought that relied on reasoning, forged the first scientific vocabulary, and laid the foundations of Western philosophy. Jonathan Barnes has painstakingly brought together the surviving Presocratic fragments in their original contexts, utilizing the latest research and a newly discovered major papyrus of Empedocles.