Carl Sagan is considered one of the greatest scientific minds of our time. His remarkable ability to explain science in terms easily understandable to the layman in bestselling books such as Cosmos, The Dragons of Eden, and The Demon-Haunted World won him a Pulitzer Prize and placed him firmly next to Isaac Asimov, Stephen Jay Gould, and Oliver Sachs as one of the most important and enduring communicators of science. In December 2006 it will be the tenth anniversary of Sagan's death, and Ann Druyan, his widow and longtime collaborator, will mark the occasion by releasing Sagan's famous "Gifford Lectures in Natural Theology," The Varieties of Scientific Experience: A Personal View of the Search for God. The chance to give the Gifford Lectures is an honor reserved for the most distinguished scientists and philosophers of our civilization. In 1985, on the grand occasion of the centennial of the lectureship, Carl Sagan was invited to give them. He took the opportunity to set down in detail his thoughts on the relationship between religion and science as well as to describe his own personal search to understand the nature of the sacred in the vastness of the cosmos. The Varieties of Scientific Experience, edited, updated and with an introduction by Ann Druyan, is a bit like eavesdropping on a delightfully intimate conversation with the late great astronomer and astrophysicist. In his charmingly down-to-earth voice, Sagan easily discusses his views on topics ranging from manic depression and the possibly chemical nature of transcendance to creationism and so-called intelligent design to the likelihood of intelligent life on other planets to the likelihood of nuclear annihilation of our own to a new concept of science as "informed worship." Exhibiting a breadth of intellect nothing short of astounding, he illuminates his explanations with examples from cosmology, physics, philosophy, literature, psychology, cultural anthropology, mythology, theology, and more. Sagan's humorous, wise, and at times stunningly prophetic observations on some of the greatest mysteries of the cosmos have the invigorating effect of stimulating the intellect, exciting the imagination, and reawakening us to the grandeur of life in the cosmos.

    These two astounding essays are among the most profound studies of the effects of mind-expanding drugs written in this century. Contains the complete texts of The Doors of Perception and Heaven and Hell , both of which became essential for the counterculture during the 1960s and influenced a generation's perception of life.

    In a philosophical approach to color, William Gass explores man's perception of the color blue as well as its common erotic, symbolic, and emotional associations.

    In How to Grow Old, the great Roman orator and statesman eloquently describes how you can make the second half of life the best part of all--and why you might discover that reading and gardening are actually far more pleasurable than sex ever was.Filled with timeless wisdom and practical guidance, Cicero's brief, charming classic—written in 44 BC and originally titled On Old Age—has delighted and inspired readers, from Saint Augustine to Thomas Jefferson, for more than two thousand years. Presented here in a lively new translation with an informative new introduction and the original Latin on facing pages, the book directly addresses the greatest fears of growing older and persuasively argues why these worries are greatly exaggerated--or altogether mistaken.Montaigne said Cicero's book "gives one an appetite for growing old." The American founding father John Adams read it repeatedly in his later years. And today its lessons are more relevant than ever in a world obsessed with the futile pursuit of youth.

    His aim is to break down the fixed categories of thought which have always appeared to define and constrain the permissible solutions to these problems.