This book offers an introductory review to a wide range of thinking, formulated over the last half-millennium in the Western world, about the meaning of human existence. It will touch on a variety of issues of contemporary significance, such as the origin and uniqueness of the human species, freedom and determinism, the nature of good and evil, and the possibilities and limits of the sciences. The book will supply a number of explanatory comments, from a Christian perspective, on the various views uncovered. Insofar as human beings are fascinated by exploring the reality of their own selves, in relation to history, culture, the natural environment, and a variety of worldviews, this book will afford readers plenty of material to stimulate them in their own exploration.