Greatly influenced by Charles Darwin, the famed German zoologist and philosopher Ernst Haeckel (1834-1919) boldly defended the fact of organic evolution and seriously considered its far-reaching ramifications for science, philosophy, and theology. Advocating the interplay of empirical evidence and rational speculation, The Riddle of the Universe is his most daring, comprehensive, and successful work. Its monistic and naturalistic worldview offers a cosmic perspective and evolutionary framework that supplants traditional theistic beliefs in God, free will, and the personal immortality of the human soul. This classic volume remains a tour de force of critical thought, free inquiry, and intellectual value. This is the Second Edition, first published in 1901, and includes a Translator’s Preface by Joseph McCabe.

As the crowd stood and applauded for the neurophysiologist Du Bois-Reymond’s lecture on August 14, 1872, they did not know that his lecture on the seven riddles of the universe would be long remembered. Scientists at the time believed that science could unlock all of the mysteries of the universe. However, the scientific revolution of the early 20th century fueled by relativity and quantum mechanics would upend the scientific world confirming Du Bois-Reymond’s insights. This book explores the brilliance of Du Bois-Reymond’s life and work and a vastly expanded scientific understanding of these riddles through the modern disciplines of physics, chemistry, and biology. Despite the progress, underlying metaphysical notions still haunt the riddles. Utilizing notions from Whitehead’s Process Philosophy, the author delves into the underlying structure of our universe and outlines the nature of the deity that emerges. Part two of this book examines the riddles consequent demands on theology and religion through the lens of the extraordinary teacher, philosopher, and theologian William DeWitt Hyde. The author clarifies notions about miracles, immortality, and wisdom. This book takes the reader on a vivid, imaginative journey towards unraveling the mysteries of our existence, roles in society, and personal loyalties.

Holding doctorates in chemistry, physics and biology, Peter Plichta applies his multifaceted scientific knowledge to the search for a universal building plan and makes a profound discovery. Plichta shows how a mathematical formula based on prime numbers underlies the mystery of the world. By decoding this fundamental numerical code, Plichta answers questions that have baffled mankind for ages and proves that the universe did not arise out of chance.

In tracing this story of discovery, astronomer and physicist Harrison explores the concept of infinite space, the structure and age of the universe, the nature of light, and other subjects that once were so perplexing.