Five Thousand B.C. and Other Philosophical Fantasies by Raymond Smullyan is a collection of paradoxes, dialogues, problems, and essays exploring philosophical ideas. This fascinating book will challenge your understanding of reality, truth, morality, existence, and death.Raymond Smullyan is a logician, mathematician, and philosopher and is the author of books including The Tao Is Silent, What Is the Name of This Book?, To Mock a Mockinbird and others.