He is regarded as a leading pioneer of existentialism and one of the greatest philosophers of the 19th Century.In Fear and Trembling, Kierkegaard wanted to understand the anxiety that must have been present in Abraham when God commanded him to offer his son as a human sacrifice. Abraham had a choice to complete the task or to forget it. He resigned himself to the loss of his son, acting according to his faith. In other words, one must be willing to give up all his or her earthly possessions in infinite resignation and must also be willing to give up whatever it is that he or she loves more than God. Abraham had passed the test -- his love for God proved greater than anything else in him. And because a good and just Creator would not want a father to kill his son, God intervened at the last moment to prevent the sacrifice.

    But while this medieval medicine now seems archaic, it also made a critical contribution to modern science.Medieval Bodies guides us on a head-to-heel journey through this era’s revolutionary advancements and disturbing convictions. We learn about the surgeons who dissected a living man’s stomach, then sewed him up again; about the geographers who delineated racial groups by skin color; and about the practice of fasting to gain spiritual renown. Encompassing medicine and mysticism, politics and art—and complete with vivid, full-color illustrations—Medieval Bodies shows us how it felt to live and die a thousand years ago.

    Psychology is the only branch of learning in which I am particularly versed. To the psychologist the religious propensities of man must be at least as interesting as any other of the facts pertaining to his mental constitution. It would seem, therefore, as a psychologist, the natural thing for me would be to invite you to a descriptive survey of those religious propensities." When William James went to the University of Edinburgh in 1901 to deliver a series of lectures on "natural religion," he defined religion as "the feelings, acts, and experiences of individual men in their solitude, so far as they apprehend themselves to stand in relation to whatever they may consider the divine." Considering religion, then, not as it is defined by--or takes place in--the churches, but as it is felt in everyday life, he undertook a project that, upon completion, stands not only as one of the most important texts on psychology ever written, not only as a vitally serious contemplation of spirituality, but for many critics one of the best works of nonfiction written in the 20th century. Reading The Varieties of Religious Experience, it is easy to see why. Applying his analytic clarity to religious accounts from a variety of sources, James elaborates a pluralistic framework in which "the divine can mean no single quality, it must mean a group of qualities, by being champions of which in alternation, different men may all find worthy missions." It's an intellectual call for serious religious tolerance--indeed, respect--the vitality of which has not diminished through the subsequent decades.